Health Education Systems Inc (HESI) A2 Exam Quiz: Revising For Clarity And Correctness
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Revising For Clarity And CorrectnessQuestion 1 of 20

Which of the following is the best revision of the sentence below?

"The chart containing the patient's lab results and family history are on the head nurse's desk."

The chart containing the patient's lab results and family history were on the head nurse's desk.
The charts containing the patient's lab results and family history are on the head nurse's desk.
On the head nurse's desk is the chart containing the patient's lab results and family history.
The chart containing the patient's lab results and family history is on the head nurse's desk.
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Health Education Systems Inc (HESI) A2 Exam Quiz

Health Education Systems Inc (HESI) A2 Exam Quiz: Revising For Clarity And Correctness

Practice Revising For Clarity And Correctness in Health Education Systems Inc (HESI) A2 Exam with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Revising For Clarity And Correctness, giving you a quick way to practice the rules, question types, and explanations that matter most for Health Education Systems Inc (HESI) A2 Exam.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

Which of the following is the best revision of the sentence below?

"The chart containing the patient's lab results and family history are on the head nurse's desk."

  1. The chart containing the patient's lab results and family history were on the head nurse's desk.
  2. The charts containing the patient's lab results and family history are on the head nurse's desk.
  3. On the head nurse's desk is the chart containing the patient's lab results and family history.
  4. The chart containing the patient's lab results and family history is on the head nurse's desk. (correct answer)
Explanation: This question tests subject-verb agreement, a fundamental grammar concept where the verb must match the number (singular or plural) of its true subject. When you encounter sentences with prepositional phrases or complex subjects, identify the main subject first, then ensure the verb agrees with it. The key to this sentence is recognizing that "chart" is the singular subject, while "containing the patient's lab results and family history" is a prepositional phrase that modifies "chart" but doesn't affect the verb choice. Since "chart" is singular, the verb must be "is," not "are." Answer D correctly uses "is" to match the singular subject "chart." The sentence maintains proper subject-verb agreement while preserving the original meaning and structure. Answer A incorrectly changes "are" to "were," which still creates subject-verb disagreement since "chart" remains singular but now has a plural past-tense verb. Answer B changes "chart" to "charts" to match the plural verb "are," but this alters the original meaning by suggesting multiple charts exist when the context implies only one. Answer C uses correct subject-verb agreement with "is the chart," but the inverted word order creates awkward phrasing that's less clear than the straightforward structure in answer D. For HESI grammar questions, always locate the true subject by eliminating prepositional phrases and modifying clauses. Don't let intervening words fool you into choosing the wrong verb form. Practice identifying subjects in complex sentences to master this common test pattern.

Question 2

Which of the following is the best revision of the sentence below?

"The pre-operative checklist involves confirming the patient's identity, to mark the correct surgical site, and checking for allergies."

  1. The pre-operative checklist involves confirming the patient's identity, marking the correct surgical site, and checking for allergies. (correct answer)
  2. The pre-operative checklist involves to confirm the patient's identity, marking the correct surgical site, and to check for allergies.
  3. The pre-operative checklist involves confirming the patient's identity, the marking of the correct surgical site, and to check for allergies.
  4. The pre-operative checklist involves confirming the patient's identity, to mark the correct surgical site, and also the checking for allergies.
Explanation: When you encounter grammar questions about lists or series, you're being tested on parallel structure - the principle that items in a list must follow the same grammatical pattern. This creates clarity and flow in professional writing, which is essential in healthcare communication. The original sentence mixes different verb forms: "confirming" (gerund), "to mark" (infinitive), and "checking" (gerund). This inconsistency makes the sentence awkward and harder to read. Answer A correctly fixes this by using all gerunds: "confirming," "marking," and "checking." This creates perfect parallel structure where each item in the list follows the same grammatical pattern. The sentence flows smoothly and clearly communicates the three essential pre-operative steps. Answer B incorrectly mixes infinitives and gerunds ("to confirm," "marking," "to check"), creating an inconsistent pattern that's just as problematic as the original. Answer C combines three different forms: a gerund ("confirming"), a noun phrase ("the marking"), and an infinitive ("to check"), making it the most grammatically inconsistent option. Answer D attempts to fix the parallel structure but adds the unnecessary word "also" and uses "the checking" (which sounds unnatural) instead of simply "checking." For HESI grammar questions, always scan lists for parallel structure. When you see items connected by commas and "and," make sure each item uses the same grammatical form - all gerunds, all infinitives, or all nouns. This pattern appears frequently on the exam and is crucial for clear healthcare documentation.

Question 3

Which of the following is the best revision of the sentence below?

"The charge nurse gave the high-priority assignment to the new intern and I."

  1. The charge nurse gave the high-priority assignment to the new intern and me. (correct answer)
  2. The charge nurse gave the high-priority assignment to myself and the new intern.
  3. The new intern and I were given the high-priority assignment by the charge nurse.
  4. Me and the new intern were given the high-priority assignment by the charge nurse.
Explanation: This question tests your understanding of pronoun case, specifically when to use "I" versus "me" in compound objects. When you encounter pronoun choices like this, remember that pronouns change form depending on whether they're the subject or object of a sentence. The key is identifying that "the new intern and [pronoun]" serves as the object of the preposition "to" in this sentence. Objects of prepositions always require the objective case pronoun "me," not the subjective case "I." You can test this by removing the other person from the sentence: "The charge nurse gave the assignment to me" sounds correct, while "The charge nurse gave the assignment to I" clearly sounds wrong. Choice A correctly uses "me" as the object of the preposition "to." This is the proper objective case pronoun needed here. Choice B incorrectly uses "myself," which is a reflexive pronoun only appropriate when the subject and object refer to the same person. Since the charge nurse is giving the assignment (not giving it to herself), "myself" is grammatically incorrect. Choice C changes the sentence structure entirely, making "the new intern and I" the subject rather than the object. While this creates a grammatically correct sentence, it doesn't represent the best revision of the original sentence structure. Choice D uses "me" correctly but places it before "the new intern," which violates the courtesy convention of putting yourself second in compound phrases. Remember this trick: remove the other person from compound phrases to test which pronoun sounds right. This simple strategy will help you choose between "I" and "me" every time.

Question 4

Which revision best enhances clarity and correctness? "The nurse administered the medication to the patient who was experiencing severe pain in the emergency room."

  1. The nurse administered the medication to the patient, who was experiencing severe pain, in the emergency room.
  2. In the emergency room, the nurse administered the medication to the patient who was experiencing severe pain. (correct answer)
  3. The nurse administered the medication in the emergency room to the patient who was experiencing severe pain.
  4. The nurse, in the emergency room, administered the medication to the patient who was experiencing severe pain.
Explanation: The correct answer is B. The original sentence has a misplaced modifier that suggests the patient was experiencing pain 'in the emergency room' rather than clarifying where the nurse administered medication. Choice B eliminates ambiguity by clearly placing 'in the emergency room' at the beginning to modify the entire action. Choice A adds commas but doesn't resolve the location ambiguity. Choice C still creates confusion about whether the pain or medication administration occurred in the ER. Choice D awkwardly interrupts the subject-verb relationship.

Question 5

Choose the revision that best improves sentence clarity and correctness: "Each of the nurses were required to complete their continuing education credits before the deadline, which was important for maintaining certification."

  1. Each of the nurses was required to complete their continuing education credits before the deadline, which was important for maintaining certification.
  2. Each of the nurses was required to complete his or her continuing education credits before the deadline, which was important for maintaining certification.
  3. All of the nurses were required to complete their continuing education credits before the deadline, which was important for maintaining certification.
  4. Each nurse was required to complete continuing education credits before the deadline, which was important for maintaining certification. (correct answer)
Explanation: The correct answer is D. The original has multiple issues: subject-verb disagreement ('each...were'), pronoun disagreement ('each...their'), and an ambiguous 'which' clause. Choice D fixes all problems by using singular 'nurse' with appropriate verb agreement and eliminating the pronoun issue entirely. Choice A fixes the verb but keeps the pronoun problem. Choice B fixes both agreement issues but is wordier and still has the ambiguous 'which.' Choice C changes the meaning by using 'all' instead of 'each' and retains the ambiguous reference.

Question 6

Select the most appropriate revision for clarity and correctness: "The patient complained of chest pain, shortness of breath, and nausea, the symptoms had been present for approximately two hours."

  1. The patient complained of chest pain, shortness of breath, and nausea; the symptoms had been present for approximately two hours.
  2. The patient complained of chest pain, shortness of breath, and nausea, and the symptoms had been present for approximately two hours.
  3. The patient complained of chest pain, shortness of breath, and nausea—symptoms that had been present for approximately two hours. (correct answer)
  4. The patient complained of chest pain, shortness of breath, and nausea. The symptoms had been present for approximately two hours.
Explanation: The correct answer is C. The original sentence is a comma splice (two independent clauses joined by only a comma). Choice C most effectively combines the information by using an em dash and appositive structure, creating a smoother, more concise sentence. Choice A fixes the comma splice with a semicolon but creates redundancy. Choice B adds a coordinating conjunction but results in awkward repetition of 'symptoms.' Choice D separates into two sentences, which is correct but less fluent than the integrated approach in C.

Question 7

Which revision best enhances the sentence's clarity and grammatical correctness? "While preparing the sterile field, the surgical instruments needed to be arranged in a specific order according to the procedure."

  1. While preparing the sterile field, the surgical team needed to arrange the instruments in a specific order according to the procedure. (correct answer)
  2. The surgical instruments needed to be arranged in a specific order according to the procedure while preparing the sterile field.
  3. While the sterile field was being prepared, the surgical instruments needed to be arranged in a specific order according to the procedure.
  4. Preparing the sterile field required that the surgical instruments needed to be arranged in a specific order according to the procedure.
Explanation: The correct answer is A. The original sentence has a dangling modifier—the surgical instruments aren't preparing the sterile field. Choice A corrects this by providing a clear subject ('the surgical team') who performs the action. Choice B doesn't fix the dangling modifier and creates unclear timing. Choice C uses passive voice throughout, making the sentence less direct and still somewhat unclear about who performs the action. Choice D changes the sentence structure significantly and creates redundancy with 'required that...needed.'

Question 8

Which revision best improves the sentence for clarity and grammatical accuracy? "Between you and I, the patient's prognosis appears more optimistic than what the initial assessment suggested."

  1. Between you and me, the patient's prognosis appears more optimistic than what the initial assessment suggested.
  2. Between you and I, the patient's prognosis appears more optimistic than the initial assessment suggested.
  3. Between you and myself, the patient's prognosis appears more optimistic than what the initial assessment suggested.
  4. Between you and me, the patient's prognosis appears more optimistic than the initial assessment suggested. (correct answer)
Explanation: This question tests your understanding of pronoun case, specifically when to use subjective versus objective pronouns in prepositional phrases. When you encounter grammar questions involving pronouns after prepositions like "between," "with," or "for," always use the objective case. The correct answer is D because it fixes both grammatical errors in the original sentence. First, "between" is a preposition that requires objective pronouns, so "between you and me" is correct—never "between you and I." Second, the phrase "than what the initial assessment suggested" is unnecessarily wordy and awkward. The cleaner construction is "than the initial assessment suggested," which directly compares the current prognosis to the initial assessment. A corrects the pronoun error by using "me" instead of "I," but it retains the wordy "than what" construction, making it less clear than option D. B keeps the incorrect subjective pronoun "I" after the preposition "between." While it does improve the comparison by removing "what," the pronoun error makes this choice grammatically wrong. C uses "myself," which is a reflexive pronoun that should only be used when the subject performs an action on themselves. Here, there's no reflexive action, so "myself" is inappropriate. It also maintains the wordy "than what" phrasing. Study tip: Remember that prepositions always take objective pronouns (me, him, her, us, them), never subjective ones (I, he, she, we, they). A quick test is to remove the other person: you'd say "between me" not "between I."

Question 9

Select the most effective revision for clarity and correctness: "Due to the fact that the patient was experiencing adverse reactions, the medication dosage was reduced by the attending physician immediately."

  1. Because the patient was experiencing adverse reactions, the medication dosage was reduced by the attending physician immediately.
  2. Because the patient was experiencing adverse reactions, the attending physician immediately reduced the medication dosage. (correct answer)
  3. Due to the patient experiencing adverse reactions, the attending physician immediately reduced the medication dosage.
  4. The attending physician immediately reduced the medication dosage due to the fact that the patient was experiencing adverse reactions.
Explanation: When you encounter sentence revision questions on the HESI, you're being tested on two key principles: eliminating wordiness and using active voice for clarity. These skills are essential for clear medical communication. The most effective revision eliminates unnecessary phrases and puts the subject (the attending physician) in an active position. Option B accomplishes both goals perfectly. It replaces the wordy phrase "due to the fact that" with the concise "because," and it uses active voice by making the physician the subject who performs the action. The word order "immediately reduced" also flows more naturally than placing "immediately" at the end. Let's examine why the other options fall short. Option A improves the wordiness by using "because" instead of "due to the fact that," but it keeps the awkward passive construction "the medication dosage was reduced by the attending physician immediately," which sounds clunky and places emphasis on the dosage rather than the decision-maker. Option C attempts active voice but uses the awkward phrase "due to the patient experiencing," which creates unclear grammar. Option D maintains the original wordy phrase "due to the fact that" and places it awkwardly at the end of the sentence, making the causal relationship less clear. For HESI writing questions, remember this pattern: look for the option that combines concise language with active voice. Active voice typically follows the structure of subject-verb-object and makes medical writing clearer by identifying who took what action. Eliminate options with wordy phrases like "due to the fact that" when simpler alternatives like "because" exist.

Question 10

Which revision most effectively improves clarity and grammatical accuracy? "Having worked the night shift for three consecutive weeks, fatigue and irritability affected the nurse's performance significantly."

  1. Having worked the night shift for three consecutive weeks, the nurse's performance was significantly affected by fatigue and irritability.
  2. After working the night shift for three consecutive weeks, fatigue and irritability significantly affected the nurse's performance.
  3. Having worked the night shift for three consecutive weeks, the nurse experienced fatigue and irritability that significantly affected performance. (correct answer)
  4. Working the night shift for three consecutive weeks, the nurse's fatigue and irritability significantly affected performance.
Explanation: The correct answer is C. The original sentence has a dangling modifier—'fatigue and irritability' didn't work the night shift. Choice C corrects this by making 'the nurse' the subject who performed the action and experienced the consequences. Choice A still has a dangling modifier with passive voice. Choice B fixes the modifier issue but changes the intended meaning by suggesting the fatigue occurred after rather than as a result of the work. Choice D creates an unclear relationship between the modifier and an incomplete thought.

Question 11

Select the most effective revision for clarity and grammatical correctness: "After reviewing the patient's medical history, the diagnosis became clear to the physician, however, additional tests were still needed."

  1. After reviewing the patient's medical history, the diagnosis became clear to the physician; however, additional tests were still needed.
  2. After the physician reviewed the patient's medical history, the diagnosis became clear, however, additional tests were still needed.
  3. After reviewing the patient's medical history, the physician found the diagnosis clear; however, additional tests were still needed. (correct answer)
  4. After reviewing the patient's medical history, the diagnosis became clear to the physician, but additional tests were still needed.
Explanation: The correct answer is C. The original sentence has two problems: a dangling modifier (the diagnosis didn't review the history) and a comma splice. Choice C fixes both by making the physician the clear subject and using a semicolon before 'however.' Choice A fixes the comma splice but retains the dangling modifier. Choice B partially addresses the modifier issue but keeps the comma splice. Choice D fixes the comma splice with 'but' but doesn't resolve the dangling modifier problem.

Question 12

Which revision best improves the clarity and correctness of the following sentence? "The patient's symptoms, including nausea, dizziness, and fatigue, which had persisted for several days, was concerning to the healthcare team."

  1. The patient's symptoms, including nausea, dizziness, and fatigue, which had persisted for several days, were concerning to the healthcare team. (correct answer)
  2. The patient's symptoms, including nausea, dizziness, and fatigue, that had persisted for several days, was concerning to the healthcare team.
  3. The patient's symptoms—including nausea, dizziness, and fatigue—which had persisted for several days, was concerning to the healthcare team.
  4. The patient's symptoms, including nausea, dizziness, and fatigue, which persisted for several days, was concerning to the healthcare team.
Explanation: The correct answer is A. The main issue is subject-verb disagreement: the plural subject 'symptoms' requires the plural verb 'were,' not 'was.' Choice A fixes this error while maintaining proper punctuation and meaning. Choice B incorrectly uses 'that' instead of 'which' for a non-restrictive clause and keeps the wrong verb. Choice C adds unnecessary em dashes but retains the incorrect verb. Choice D removes 'had' but still has the subject-verb disagreement.

Question 13

Which of the following is the best revision of the sentence below?

"The nurse handed the anxiolytic medication to the agitated patient that was in a small, brown vial."

  1. The nurse handed the anxiolytic medication, which was in a small, brown vial, to the agitated patient. (correct answer)
  2. The nurse handed the anxiolytic medication in a small, brown vial to the agitated patient.
  3. The anxiolytic medication was in a small, brown vial, the nurse handed it to the agitated patient.
  4. To the agitated patient, the nurse handed the anxiolytic medication that was in a small, brown vial.
Explanation: This question tests your understanding of misplaced modifiers, a common grammar error that can create confusion about which words relate to each other in a sentence. The original sentence contains a misplaced modifier: "that was in a small, brown vial" appears to describe "the agitated patient" rather than "the anxiolytic medication." Option A correctly fixes this problem by placing the descriptive phrase "which was in a small, brown vial" immediately after "anxiolytic medication," making it clear that the medication, not the patient, is in the vial. The comma placement and use of "which" creates proper grammatical structure while maintaining clarity. Option B creates ambiguity because "in a small, brown vial" could still be interpreted as modifying either the medication or the patient, though it's less confusing than the original. However, it's not as grammatically precise as option A. Option C creates a comma splice error by incorrectly joining two independent clauses with just a comma. This violates basic sentence structure rules and would be marked incorrect on grammar assessments. Option D simply moves the misplaced modifier to a different position but doesn't fix the fundamental problem. The phrase "that was in a small, brown vial" still appears to modify "patient" rather than "medication." When you encounter modifier questions on the HESI, always identify what the descriptive phrase is meant to modify, then check if it's placed as close as possible to that word. Misplaced modifiers are frequent test topics because they're common errors in healthcare documentation.

Question 14

Which of the following is the best revision of the sentence below?

"The medical student reviewed the patient's history, examines the rash on his arm, and then consults with the attending physician."

  1. The medical student reviews the patient's history, examines the rash on his arm, and then consults with the attending physician.
  2. The medical student had reviewed the patient's history, examined the rash on his arm, and then consulted with the attending physician.
  3. The medical student reviewed the patient's history, examined the rash on his arm, and then consulted with the attending physician. (correct answer)
  4. The medical student reviewed the patient's history, examines the rash on his arm, and then consulted with the attending physician.
Explanation: This question tests your understanding of parallel structure and verb tense consistency, which are essential skills for clear medical communication and documentation. The original sentence contains a verb tense error that disrupts the flow of actions. When describing a sequence of completed actions, all verbs should maintain the same tense to show they occurred in the same time frame. The sentence describes three past actions the medical student performed, so all three verbs need to be in past tense. Why C is correct: This option fixes the tense inconsistency by changing "examines" to "examined," making all three verbs past tense: "reviewed," "examined," and "consulted." This creates proper parallel structure and clearly indicates that all actions were completed in the past. Why the other options fail: Option A converts everything to present tense, which would only be appropriate if describing ongoing or habitual actions, not a specific completed sequence. Option B uses past perfect "had reviewed" for the first action, which incorrectly suggests it happened before the other past actions, disrupting the chronological sequence. Option D keeps the original error, mixing past tense "reviewed" and "consulted" with present tense "examines." Study tip: When you encounter verb tense questions on the HESI, look for consistency within the sentence or paragraph. If actions happen in the same time frame, they should use the same tense. Medical documentation requires precise, consistent language, so these grammar skills directly apply to your future healthcare career.

Question 15

Which of the following is the best revision of the sentence below?

"The specialist to who the patient was referred is a leading expert in endocrinology."

  1. The specialist who the patient was referred to is a leading expert in endocrinology.
  2. The patient was referred to a specialist who is a leading expert in endocrinology.
  3. The specialist to whom the patient was referred is a leading expert in endocrinology. (correct answer)
  4. The specialist, a leading expert in endocrinology, is who the patient was referred to.
Explanation: This question tests your understanding of relative pronouns, specifically when to use "who" versus "whom" in formal writing. The key is recognizing that "whom" is the object form of "who," used when the pronoun receives the action of the verb or follows a preposition. In the original sentence, "to who" is grammatically incorrect because "who" is the subject form of the pronoun, but here it follows the preposition "to." When a pronoun follows a preposition, you must use the object form "whom." Additionally, the sentence structure is clear and maintains proper formal tone expected in medical documentation. Option C correctly uses "whom" after the preposition "to," creating the grammatically proper phrase "to whom the patient was referred." The sentence structure is also clear and professional. Option A moves the preposition to the end ("referred to") but incorrectly uses "who" instead of "whom." Even when the preposition is moved, the pronoun is still functioning as an object and requires "whom." Option B completely restructures the sentence and, while grammatically correct, changes the emphasis from the specialist to the patient, which may not match the intended meaning of the original. Option D creates an awkward construction with "is who the patient was referred to," mixing tenses and creating unclear pronoun reference. The phrase also incorrectly uses "who" instead of "whom." Remember: After prepositions (to, for, with, by), always use "whom," not "who." When in doubt, try substituting "him/her" - if it works, use "whom."

Question 16

Which of the following is the best revision of the sentence below?

"While preparing the sterile field for the procedure. The surgical technician noticed a tear in her glove."

  1. While preparing the sterile field for the procedure; the surgical technician noticed a tear in her glove.
  2. The surgical technician was preparing the sterile field. When she noticed a tear in her glove.
  3. While preparing the sterile field for the procedure, the surgical technician noticed a tear in her glove. (correct answer)
  4. Preparing the sterile field for the procedure, a tear in the surgical technician's glove was noticed.
Explanation: This question tests your ability to identify and correct sentence fragments, a crucial skill for healthcare documentation and communication. When you see incomplete sentences in medical contexts, you need to recognize structural problems that could lead to miscommunication. The original sentence contains a sentence fragment: "While preparing the sterile field for the procedure." This subordinate clause cannot stand alone because it begins with "while" and lacks a complete thought. It needs to be connected to the main clause that follows. Answer choice C correctly fixes this fragment by removing the period and adding a comma, creating one complete sentence: "While preparing the sterile field for the procedure, the surgical technician noticed a tear in her glove." This properly connects the dependent clause to the independent clause. Answer choice A incorrectly uses a semicolon, which should only separate two independent clauses. Since "While preparing the sterile field for the procedure" is dependent, a semicolon creates an error. Answer choice B creates two fragments instead of fixing the original problem—"When she noticed a tear in her glove" is also a dependent clause that cannot stand alone. Answer choice D fixes the fragment but introduces a new error called a dangling modifier. The phrase "Preparing the sterile field" appears to modify "tear" rather than "surgical technician," creating confusing meaning. For healthcare writing questions on the HESI, always check that dependent clauses beginning with words like "while," "when," "because," or "although" are properly connected to independent clauses with commas, not separated by periods or semicolons.

Question 17

Which of the following is the best revision of the sentence below?

"Of the two available veins, the phlebotomist chose the most prominent one for the blood draw."

  1. Of the two available veins, the phlebotomist chose the more prominent one for the blood draw. (correct answer)
  2. Of the two available veins, the phlebotomist chose the prominentest one for the blood draw.
  3. Of all the available veins, the phlebotomist chose the most prominent one for the blood draw.
  4. The phlebotomist chose the most prominent of the two available veins for the blood draw.
Explanation: This question tests your understanding of comparative versus superlative adjectives, a crucial grammar concept for healthcare communication. When comparing exactly two items, you must use the comparative form; when comparing three or more items, you use the superlative form. Since the sentence explicitly states "two available veins," you need the comparative form "more prominent" rather than the superlative "most prominent." The comparative form is used for direct comparisons between two things, while the superlative is reserved for comparing one thing against a group of three or more. Looking at each option: Choice A correctly uses "more prominent" when comparing the two veins, making this the proper revision. Choice B creates the nonstandard form "prominentest," which is grammatically incorrect—you cannot add both "-est" and "most" to create superlatives. Choice C changes the meaning by saying "all the available veins" instead of "two," which would make the superlative "most prominent" correct, but this alters the original sentence's meaning. Choice D keeps the incorrect superlative "most prominent" while still referring to only two veins, maintaining the original grammatical error. The key distinction is the number being compared: two items require comparative forms (more, better, worse), while three or more require superlative forms (most, best, worst). On the HESI, grammar questions often test these comparative/superlative rules, so always count how many items are being compared before selecting your adjective form.

Question 18

Which of the following is the best revision of the sentence below?

"After the physical therapy session, the patient reported that his knee felt good and that he could walk more easy."

  1. After the physical therapy session, the patient reported that his knee felt well and that he could walk more easy.
  2. After the physical therapy session, the patient reported that his knee felt good and that he could walk more easily.
  3. After the physical therapy session, the patient reported that his knee felt well and that he could walk more easily. (correct answer)
  4. After the physical therapy session, the patient reported that his knee felt goodly and that he could walk more easily.
Explanation: This question tests your understanding of proper adjective and adverb usage in healthcare communication. When you encounter grammar questions on the HESI, focus on identifying whether descriptive words are modifying nouns (use adjectives) or verbs (use adverbs). The sentence contains two key grammatical issues. First, "felt good" versus "felt well" - when describing physical condition or health status, "well" is the correct choice because it refers to the state of health, while "good" describes general quality or mood. Second, "more easy" should be "more easily" because you need an adverb to modify the verb "walk." Looking at each option: Choice A incorrectly keeps "more easy" instead of the proper adverbial form. Choice B correctly fixes the adverb issue with "more easily" but uses "good" instead of "well" when describing physical health status. Choice D creates a non-existent word "goodly" - this isn't proper English. Choice C correctly addresses both problems by using "well" for the health condition and "easily" as the proper adverb form. For HESI grammar questions, remember that healthcare writing demands precision. "Well" specifically relates to health and physical condition, while "good" is more general. Also, when modifying action verbs like "walk," you need adverbs (often ending in -ly), not adjectives. Practice identifying whether you're describing a person's condition (adjective) or how they perform an action (adverb) to master these distinctions.

Question 19

Which of the following is the best revision of the sentence below?

"Walking into the patient's room, the empty IV bag was the first thing the nurse noticed."

  1. The empty IV bag was the first thing the nurse noticed, walking into the patient's room.
  2. Walking into the patient's room, the nurse first noticed the empty IV bag. (correct answer)
  3. While walking into the patient's room, the IV bag was noticed as empty by the nurse.
  4. The nurse, walking into the patient's room, the empty IV bag was the first thing she noticed.
Explanation: When you encounter sentence revision questions, you're being tested on your ability to identify and fix dangling modifiers - phrases that don't clearly connect to what they're supposed to describe. The original sentence contains a dangling modifier: "Walking into the patient's room" appears to modify "the empty IV bag," which creates the illogical meaning that the IV bag was walking into the room. The modifier needs to be placed so it clearly describes the nurse's action. Option B correctly fixes this problem by placing the modifier next to "the nurse," making it clear that the nurse is the one walking into the room. The sentence now has proper structure: the introductory phrase modifies the subject that immediately follows it, and the meaning is crystal clear. Option A simply moves the modifier to the end but doesn't fix the core problem - it's still unclear who is walking. Option C uses passive voice ("was noticed") which creates awkward phrasing and doesn't clearly establish the nurse as the one doing the walking. Option D creates a sentence fragment with "The nurse, walking into the patient's room" followed by an incomplete construction that leaves the nurse hanging without a proper verb. For HESI grammar questions, always check that modifying phrases are placed next to the words they're meant to describe. When you see an opening phrase followed by a comma, make sure the subject immediately after the comma is what's actually performing the action described in that opening phrase.

Question 20

Which of the following is the best revision of the sentence below?

"Each of the vials containing the new vaccine have to be kept at a specific temperature."

  1. Each of the vials containing the new vaccine has to be kept at a specific temperature. (correct answer)
  2. All of the vials containing the new vaccine have to be kept at a specific temperature.
  3. The vials, each containing the new vaccine, has to be kept at a specific temperature.
  4. Each of the vials containing the new vaccine have been kept at a specific temperature.
Explanation: When you encounter grammar questions on the HESI exam, pay close attention to subject-verb agreement, especially with phrases that can obscure the true subject of the sentence. The correct answer is A because "each" is always a singular subject, requiring the singular verb "has." Even though "vials" appears in the prepositional phrase "of the vials," the word "each" remains the subject of the sentence. The phrase "of the vials containing the new vaccine" is just describing which items we're talking about, but it doesn't change the fact that "each" is singular. Looking at the wrong answers: B changes the subject from "each" to "all," which does require the plural verb "have" - but this changes the meaning of the sentence from focusing on individual vials to the collective group. C creates a new error by using "has" with the plural subject "vials." D keeps the original subject-verb disagreement and adds an unnecessary tense change to "have been," which suggests completed action rather than an ongoing requirement. The key trap here is that the prepositional phrase "of the vials" places a plural noun right next to the verb, making "have" sound correct to your ear. However, subjects are never found within prepositional phrases. Remember this rule: When "each" is the subject, always use singular verbs, regardless of what plural nouns appear in nearby prepositional phrases. Cross out prepositional phrases mentally to identify the true subject-verb relationship.