NREMT EMT Level Quiz: Breathing Assessment And Oxygen Therapy
20 questions · exam conditions
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Breathing Assessment And Oxygen TherapyQuestion 1 of 20

Which oxygen flow rate is appropriate when using a nasal cannula?

1-6 liters per minute to deliver 24-44% oxygen concentration
6-10 liters per minute to deliver 35-60% oxygen concentration
10-15 liters per minute to deliver 85-100% oxygen concentration
15-25 liters per minute to deliver maximum oxygen saturation
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NREMT EMT Level Quiz

NREMT EMT Level Quiz: Breathing Assessment And Oxygen Therapy

Practice Breathing Assessment And Oxygen Therapy in NREMT EMT Level 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 Breathing Assessment And Oxygen Therapy, giving you a quick way to practice the rules, question types, and explanations that matter most for NREMT EMT Level.

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 oxygen flow rate is appropriate when using a nasal cannula?

  1. 1-6 liters per minute to deliver 24-44% oxygen concentration (correct answer)
  2. 6-10 liters per minute to deliver 35-60% oxygen concentration
  3. 10-15 liters per minute to deliver 85-100% oxygen concentration
  4. 15-25 liters per minute to deliver maximum oxygen saturation
Explanation: Nasal cannula operates at 1-6 LPM delivering 24-44% oxygen. Higher flow rates cause patient discomfort and don't significantly increase oxygen delivery. Option B describes simple face mask flows. Option C describes non-rebreather mask flows. Option D exceeds safe nasal cannula parameters.

Question 2

You are treating a conscious 22-year-old patient who is complaining of difficulty breathing after a bee sting. The patient's respiratory rate is 28 breaths per minute with adequate chest rise and clear lung sounds.

What is the most appropriate oxygen therapy for this patient?

  1. Nasal cannula at 2-4 liters per minute for mild respiratory distress
  2. Non-rebreather mask at 10-15 liters per minute for potential anaphylaxis (correct answer)
  3. Bag-valve-mask ventilation to assist with increased respiratory effort
  4. Simple face mask at 6-8 liters per minute for moderate dyspnea
Explanation: Bee sting with dyspnea suggests possible allergic reaction/anaphylaxis requiring high-concentration oxygen via non-rebreather mask. Nasal cannula (option A) provides insufficient oxygen for potential anaphylaxis. BVM (option C) is inappropriate for adequate breathing. Simple face mask (option D) provides lower oxygen concentration than needed for this emergency.

Question 3

A 55-year-old patient presents with chest pain and mild shortness of breath. The patient is alert, speaking in full sentences, and has a respiratory rate of 18 breaths per minute with good chest expansion.

What oxygen delivery method is most appropriate for this patient?

  1. No oxygen therapy needed since patient is speaking normally
  2. Nasal cannula at 2-4 liters per minute for comfort measures
  3. Non-rebreather mask at 10-15 liters per minute for chest pain protocol (correct answer)
  4. Bag-valve-mask assistance to reduce respiratory workload
Explanation: Chest pain patients receive high-concentration oxygen via non-rebreather mask regardless of apparent breathing adequacy, as this may indicate cardiac ischemia. Option A ignores chest pain protocol. Nasal cannula (option B) provides insufficient oxygen for potential cardiac event. BVM (option D) is inappropriate for adequate breathing.

Question 4

When using a bag-valve-mask, what indicates you are providing effective ventilation?

  1. Rapid chest compressions with maximum pressure delivery technique
  2. Visible chest rise and fall with each ventilation at appropriate rate (correct answer)
  3. Fast ventilation rate to quickly improve patient's oxygen saturation levels
  4. Maximum bag compression to deliver largest possible tidal volume safely
Explanation: Effective BVM ventilation is indicated by visible chest rise and fall at the appropriate rate (10-12/min for adults). Option A describes chest compressions, not ventilation. Option C risks hyperventilation. Option D can cause gastric distension and lung injury.

Question 5

A 30-year-old patient is found unconscious with agonal respirations occurring every 10-15 seconds. The respirations are slow, gasping, and irregular.

What is your immediate action regarding this patient's breathing?

  1. Apply nasal cannula oxygen and monitor respiratory pattern development closely
  2. Position patient in recovery position and provide supplemental oxygen therapy
  3. Begin immediate bag-valve-mask ventilation with high-flow oxygen delivery (correct answer)
  4. Coach patient to breathe more regularly and deeply with verbal encouragement
Explanation: Agonal respirations are inadequate and indicate impending respiratory arrest requiring immediate BVM ventilation. Nasal cannula (option A) won't help inadequate breathing. Recovery position (option B) is inappropriate for someone needing ventilation assistance. The patient is unconscious and cannot respond to coaching (option D).

Question 6

A 65-year-old patient is found unconscious with snoring respirations at 8 breaths per minute. Each breath appears shallow with poor chest rise.

What is your immediate priority for this patient's airway and breathing?

  1. Apply high-flow oxygen via nasal cannula at 6 liters per minute
  2. Position patient upright and coach deep breathing techniques
  3. Open airway with head-tilt chin-lift and begin bag-valve-mask ventilation (correct answer)
  4. Insert nasopharyngeal airway and monitor respiratory status closely
Explanation: This patient has inadequate breathing (bradypnea with poor tidal volume) and airway obstruction (snoring). Head-tilt chin-lift opens the airway, and BVM provides needed ventilation. Nasal cannula (option A) won't help inadequate breathing. Patient is unconscious (option B). NPA alone (option D) doesn't address inadequate ventilation.

Question 7

You are assessing a patient who was pulled from a house fire. The patient is conscious, coughing frequently, and has a hoarse voice. Respiratory rate is 24 breaths per minute with adequate chest rise.

What is your primary concern regarding this patient's breathing?

  1. Tachypnea indicates developing pneumonia from smoke exposure
  2. Potential airway burns and swelling requiring close airway monitoring (correct answer)
  3. Carbon monoxide poisoning causing altered respiratory drive patterns
  4. Anxiety-related hyperventilation from traumatic fire experience
Explanation: Hoarse voice and cough after fire exposure suggest airway burns and potential swelling that could rapidly compromise the airway. While CO poisoning (option C) is a concern, airway burns are more immediately life-threatening. Pneumonia (option A) develops later. Anxiety (option D) doesn't explain the hoarse voice.

Question 8

You are assessing a 28-year-old female who appears anxious and is breathing rapidly. Her respiratory rate is 32 breaths per minute, but her chest rise appears adequate and her skin color is normal.

What is your most appropriate initial intervention for this patient's breathing?

  1. Begin positive pressure ventilation with bag-valve-mask immediately
  2. Apply a non-rebreather mask and coach slow, deep breathing (correct answer)
  3. Insert an oral airway and provide high-flow oxygen therapy
  4. Place patient supine and elevate legs for shock positioning
Explanation: This patient shows signs of hyperventilation with adequate chest rise and normal skin color. Coaching breathing and providing oxygen is appropriate. BVM (option A) is for inadequate breathing. OPA (option C) is for unconscious patients with airway issues. Shock positioning (option D) is unrelated to this breathing problem.

Question 9

During transport, you notice your patient's breathing has become increasingly shallow with a decreasing respiratory rate, now at 8 breaths per minute.

What is your most appropriate intervention?

  1. Increase oxygen flow rate on the current nasal cannula delivery device
  2. Switch from nasal cannula to non-rebreather mask for improved oxygen delivery
  3. Begin assisted ventilation with bag-valve-mask due to inadequate breathing pattern (correct answer)
  4. Encourage patient to take deeper breaths and monitor respiratory status closely
Explanation: Shallow breathing at 8 breaths per minute indicates inadequate ventilation requiring assisted ventilation with BVM. Simply increasing oxygen flow (option A) or switching devices (option B) won't help inadequate breathing. An unconscious or obtunded patient cannot respond to breathing encouragement (option D).

Question 10

A 45-year-old male patient is sitting upright and appears to be in moderate respiratory distress. His breathing is labored and he is using accessory muscles.

What oxygen delivery device would be most appropriate for this patient?

  1. Nasal cannula at 2-6 liters per minute
  2. Non-rebreather mask at 10-15 liters per minute (correct answer)
  3. Bag-valve-mask with high-flow oxygen
  4. Simple face mask at 6-10 liters per minute
Explanation: A patient in moderate to severe respiratory distress with accessory muscle use requires high-concentration oxygen via non-rebreather mask at 10-15 LPM. Nasal cannula provides insufficient oxygen concentration. BVM is for inadequate breathing/respiratory failure. Simple face mask is rarely used and provides lower oxygen concentration than needed.

Question 11

When assessing breathing quality, which finding indicates inadequate ventilation requiring immediate intervention?

  1. Respiratory rate of 16 breaths per minute with good chest rise
  2. Shallow breathing with minimal chest movement and cyanosis around lips (correct answer)
  3. Deep, regular respirations at 18 breaths per minute with clear sounds
  4. Slight increase in respiratory rate to 22 during mild exertion
Explanation: Shallow breathing with minimal chest movement and cyanosis indicates inadequate ventilation requiring assisted ventilation. Option A shows normal breathing. Option C shows adequate, possibly slightly deep breathing. Option D shows normal physiologic response to exertion.

Question 12

An elderly patient is found sitting in a tripod position, breathing at 32 breaths per minute. The patient can only speak 2-3 words between breaths and appears fatigued.

What does this presentation suggest about the patient's breathing status?

  1. Breathing is adequate but patient requires emotional reassurance and positioning
  2. Patient shows severe respiratory distress requiring high-concentration oxygen therapy (correct answer)
  3. Normal age-related changes in respiratory function with mild exertion
  4. Anxiety-induced hyperventilation that will resolve with calming techniques
Explanation: Tripod positioning, severe tachypnea, inability to speak full sentences, and fatigue indicate severe respiratory distress requiring immediate high-flow oxygen. This is not adequate breathing (option A), not normal aging (option C), and more serious than anxiety hyperventilation (option D).

Question 13

A firefighter with smoke inhalation has dyspnea and SpO2 98%. Which factor best explains this reading?

  1. Pulse ox reads CO as oxygen (correct answer)
  2. Smoke causes falsely high SpO2
  3. The patient is truly normal
  4. Dyspnea is from carbon dioxide
Explanation: Pulse oximetry only distinguishes saturated from unsaturated hemoglobin; it cannot detect carbon monoxide bound to hemoglobin, which it reads as oxygen. In smoke inhalation, this makes SpO2 appear normal while tissue oxygenation is actually impaired, explaining dyspnea. The tempting error is treating the reading as truly normal, but a normal SpO2 does not rule out carbon monoxide poisoning.

Question 14

Asthmatic speaks in two-word sentences; SpO2 91%. Which finding best indicates assisted ventilation is needed?

  1. Respiratory rate of 22
  2. A pulse oximetry of 91%
  3. Audible wheezing on exam
  4. Diminished breath sounds (correct answer)
Explanation: Diminished breath sounds means little air is moving, and in a patient who can only speak two-word sentences, this signals respiratory failure needing assisted ventilation. A pulse oximetry of 91% is commonly corrected with oxygen, while wheezing shows some air movement and a rate of 22 is fast but not inadequate by itself.

Question 15

Anxious patient breathes 30 times/min with deep breaths; SpO2 100%. What is the best initial action?

  1. Start assisted ventilation
  2. Give high-flow oxygen
  3. Coach slower breathing (correct answer)
  4. Place in supine position
Explanation: Your SpO2 is 100%, so oxygen delivery is already adequate; the problem is excessive ventilation. Fast, deep breathing blows off too much CO2, so the best initial move is to coach slower, controlled breathing. High-flow oxygen is tempting because the patient appears distressed, but it does not address hyperventilation and may worsen anxiety.

Question 16

Trauma patient has shallow, slow breathing and SpO2 82%. Which oxygen method is most appropriate?

  1. Nonrebreather at 15 L/min
  2. Bag-valve-mask with oxygen (correct answer)
  3. Nasal cannula at 4 L/min
  4. Simple mask at 12 L/min
Explanation: Because breathing is shallow and slow, ventilation is inadequate, so oxygen alone is not enough. A bag-valve-mask with oxygen delivers positive-pressure ventilation to support breathing while raising SpO2. A nonrebreather at 15 L/min is tempting for low SpO2, but it only gives high-concentration oxygen and does not fix inadequate ventilation.

Question 17

After high-flow oxygen, a patient's SpO2 rises from 88% to 94%. How should you proceed?

  1. Decrease oxygen to 2 L/min
  2. Maintain current oxygen flow (correct answer)
  3. Remove oxygen and reassess
  4. Assist with a bag-valve-mask
Explanation: SpO2 rising from 88% to 94% shows the high-flow oxygen is working, but the patient still needs it to stay above inadequate levels. Continue the current oxygen flow and reassess for further improvement or deterioration. Decreasing oxygen now risks a drop in saturation, while BVM is only needed if breathing is inadequate.

Question 18

During transport of a 34-year-old female with suspected opioid overdose, you notice her respiratory rate has decreased from 8/min to 4/min. She responds only to painful stimuli, and her breathing appears very shallow with poor chest rise.

What breathing assessment finding would MOST clearly indicate the need for immediate positive pressure ventilation?

  1. Respiratory rate below 8 breaths per minute regardless of other assessment parameters
  2. Inadequate tidal volume evidenced by minimal chest rise and poor air movement (correct answer)
  3. Altered mental status with response only to painful stimuli during assessment
  4. Suspected opioid overdose with classic presentation of central nervous system depression
Explanation: Inadequate tidal volume (shallow breathing with poor chest rise and minimal air movement) is the primary indicator for assisted ventilation, regardless of respiratory rate. While bradypnea is concerning, adequate tidal volume can still provide sufficient ventilation. Altered mental status and drug overdose are contextual factors, but the decision for ventilation assistance should be based on the adequacy of breathing mechanics and air exchange.

Question 19

A 52-year-old female with diabetes complains of difficulty breathing and weakness. Her respiratory rate is 24/min and deep. She appears dehydrated and has a fruity odor on her breath.

How should you interpret the breathing pattern observed in this diabetic patient?

  1. Respiratory distress requiring immediate high-flow oxygen and ventilation assistance
  2. Compensatory hyperventilation attempting to correct metabolic acidosis (correct answer)
  3. Anxiety-related hyperventilation secondary to feeling unwell and weak
  4. Early sign of respiratory failure requiring preparation for airway management
Explanation: Deep, rapid breathing (Kussmaul respirations) with fruity breath odor and dehydration suggests diabetic ketoacidosis. The respiratory pattern is compensatory - the body is trying to blow off CO2 to counteract metabolic acidosis. This is appropriate physiologic compensation, not respiratory distress requiring intervention. Interrupting this compensation with assisted ventilation could worsen the acidosis.

Question 20

You respond to a drowning incident where a 19-year-old male was submerged for approximately 5 minutes before being pulled from the water. He is now conscious but coughing up water and appears confused.

What breathing assessment finding would indicate the need for immediate positive pressure ventilation in this drowning patient?

  1. Persistent coughing with production of water from the respiratory tract
  2. Altered mental status with confusion and disorientation following submersion
  3. Inadequate chest rise with poor air movement despite conscious respiratory effort (correct answer)
  4. History of prolonged submersion time regardless of current respiratory status
Explanation: Poor chest rise and inadequate air movement indicate that despite being conscious, the patient cannot generate effective ventilation - possibly due to laryngospasm, pulmonary edema, or aspiration. This requires assisted ventilation. Coughing up water is expected and helps clear the airway. Altered mental status and submersion history are concerning but don't alone indicate the need for ventilation assistance if breathing mechanics are adequate.