Nclexpn Quiz: Sterile Technique And Asepsis

What this quiz covers

This quiz focuses on Sterile Technique And Asepsis, giving you a quick way to practice the rules, question types, and explanations that matter most for Nclexpn.

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.

Question 1

1. Proceed with the dressing change if no visible droplets are on the supplies.
2. Cover the current sterile field with a sterile towel and continue the procedure.
3. Discard the contaminated supplies and set up a new sterile field. (correct answer)
4. Wipe the bedside table with an alcohol swab and reuse the unopened supplies.

Explanation: A sterile field is considered contaminated whenever it is exposed to microorganisms, including those expelled during a cough — regardless of whether visible droplets are apparent. Microorganisms are not visible to the naked eye, so the absence of visible contamination does not guarantee sterility. The only safe course of action is to discard the compromised supplies and restart with a fresh sterile setup. Proceeding despite the cough (A) violates the fundamental principle that if sterility is in doubt, the field is considered contaminated. Covering with a sterile towel (B) does not retroactively sterilize already-contaminated items beneath it. Wiping with an alcohol swab and reusing supplies (D) confuses medical asepsis (cleaning) with surgical asepsis (sterility) — alcohol cleaning does not render items sterile.

Question 2

1. Use the dominant hand to pick up the lubricant and continue the procedure. (correct answer)
2. Use the contaminated non-dominant hand to reach back into the sterile kit for the lubricant.
3. Ask a colleague to open a new lubricant packet and drop it onto the sterile field.
4. Use the dominant hand to complete the procedure without using the lubricant.

Explanation: During urinary catheterization, the non-dominant hand is used to separate and stabilize the labia, and once it contacts the client's perineal tissue it is considered contaminated for the remainder of the procedure. The dominant hand, however, remains sterile throughout and can safely retrieve items from the sterile field — including the lubricant packet. This hand-role division is a foundational principle of catheter insertion technique. Using the contaminated non-dominant hand to reach into the sterile kit (B) would contaminate the entire field and all remaining sterile equipment. Note that if a second nurse is present, Choice C (having a colleague drop a new lubricant packet onto the field) is also clinically acceptable; however, the standard answer assumes the nurse is working independently. Completing the procedure without lubricant (D) increases the risk of urethral trauma and is not appropriate.

Question 3

1. Continue the dressing change and document the contact with the bed rail.
2. Wash the contaminated glove with sterile saline and finish the procedure.
3. Remove the contaminated gloves and don a new pair of sterile gloves. (correct answer)
4. Apply an antibiotic ointment to the wound to prevent potential infection.

Explanation: Contact between a sterile glove and any non-sterile surface — including the bed rail, which is a known reservoir of microorganisms — results in immediate, irreversible contamination of that glove. The nurse must remove the contaminated gloves and don a fresh sterile pair before continuing any contact with the wound. This is a non-negotiable principle of surgical asepsis: contamination is not a matter of degree. Continuing without replacing the gloves (A) introduces pathogens directly into a deep wound, significantly increasing infection risk. Rinsing with sterile saline (B) does not restore sterility; sterile saline cleans surfaces but cannot neutralize contamination on a glove. Applying antibiotic ointment (D) treats a potential consequence rather than correcting the immediate breach in technique and does not replace the need for sterile gloves.

Question 4

1. Normal inflammatory response during the healing process.
2. Potential wound dehiscence or surgical site infection. (correct answer)
3. An allergic reaction to the previous adhesive tape.
4. Expected drainage for a client with diabetes.

Explanation: Purulent (pus-like) drainage combined with localized erythema and edema are cardinal signs of a surgical site infection (SSI). These findings are distinctly abnormal and must be reported and acted upon. Note that while the choice includes wound dehiscence — a separate complication referring to the mechanical separation of wound edges — the findings described here (redness, swelling, purulent drainage) are specifically consistent with SSI; dehiscence presents as visible wound edge separation, which may occur as a consequence of infection but is not itself evidenced by the current cues. Choice A is incorrect; normal wound inflammation (Days 1-4 post-op) produces mild redness and serous drainage — not purulent exudate. Purulence is never normal at any stage of healing. Choice C is not supported by the findings; contact dermatitis from tape typically causes rash at tape borders, not purulent drainage from the incision itself. Choice D is incorrect; purulent drainage is not an expected finding for any client regardless of diabetic status.

Question 5

1. Impaired skin integrity related to surgical trauma.
2. Risk for systemic infection related to wound contamination. (correct answer)
3. Acute pain related to the surgical incision.
4. Deficient knowledge related to post-operative care.

Explanation: The presence of purulent wound drainage in an immunocompromised client — one with diabetes and obesity — signals a localized infection with the potential to spread systemically and progress to sepsis if not identified and contained. Risk for systemic infection is therefore the priority hypothesis because it carries the most serious and immediate threat to the client's life. Impaired skin integrity (A) is an accurate and relevant hypothesis but it describes an existing condition rather than the most dangerous potential consequence — it is subsumed within the broader concern about infection spread. Acute pain (C) warrants assessment and management but does not pose the same level of life-threatening risk. Deficient knowledge (D) is appropriate for discharge planning but is not a priority during an acute wound complication.

Question 6

1. The client reports that the pain has decreased from a 6 to a 2.
2. The wound shows no further increase in redness or purulent drainage over 24 hours. (correct answer)
3. The client's blood glucose level remains within the target range.
4. The client can demonstrate how to remove the old dressing with clean gloves.

Explanation: The goal of strict sterile technique during a wound dressing change is to prevent the introduction of additional microorganisms and to support the conditions needed for wound healing. The most direct indicator of successful aseptic practice is stabilization of the wound — specifically, no worsening of redness, swelling, or purulent drainage over the subsequent 24 hours. This shows that the procedure did not introduce new pathogens and the existing infection is being contained. Pain reduction (A) is a valued clinical outcome but reflects analgesic effectiveness and overall comfort rather than aseptic success specifically. Blood glucose control (C) is critical for this diabetic client's healing trajectory but measures metabolic management, not the outcome of sterile technique. The client's ability to demonstrate dressing removal (D) is an educational outcome that supports future care but does not reflect the results of the sterile procedure performed.

Question 7

1. You must use sterile gloves when assisting the client with a routine bed bath.
2. Always wash your hands with soap and water before and after touching the client. (correct answer)
3. Make sure to keep all of the client's personal items on a sterile drape.
4. You should wear a sterile gown when helping the client ambulate in the hall.

Explanation: Hand hygiene is the most fundamental and evidence-based principle of medical asepsis. It applies to every client interaction, regardless of the setting, procedure type, or perceived infection risk. Consistent hand hygiene before and after patient contact is the single most effective intervention to interrupt the chain of infection transmission. Sterile gloves (A) are required for sterile procedures — not for routine bed baths, which require clean gloves at most. Placing personal items on sterile drapes (C) applies sterile technique requirements to a non-sterile context where they are unnecessary and impractical. A sterile gown during ambulation (D) similarly misapplies surgical asepsis to a basic nursing activity.

Question 8

1. The drape is still sterile because the saline used was sterile.
2. The entire sterile field is now contaminated by strike-through. (correct answer)
3. Only the specific wet spot is contaminated; the rest of the field is safe.
4. The field is safe to use once the saline has completely air-dried.

Explanation: Strike-through contamination occurs when moisture penetrates a sterile surface and creates a fluid bridge to a non-sterile surface beneath it. In this case, the sterile saline soaks through the drape and contacts the non-sterile table, allowing microorganisms from the table surface to migrate upward through the wet drape via capillary action — contaminating the entire sterile field above. The sterility of the saline itself is irrelevant once it has created this moisture pathway (A); it is the connection to the non-sterile surface that causes contamination. The contamination is not confined to the wet spot alone (C) because moisture and microbial migration are not limited to that exact location — the integrity of the entire field is considered compromised. Allowing the drape to air-dry (D) does not reverse contamination that has already occurred; once organisms have migrated through the moisture pathway, they remain on the field surface regardless of moisture level.

Question 9

1. Pick up the first glove by the cuff with the dominant hand.
2. Use the gloved dominant hand to pick up the second glove by the cuff.
3. Slide the dominant hand into the glove without touching the outer surface.
4. Grasp the inside of the cuff of the first glove with the non-dominant hand. (correct answer)

Explanation: The first step after opening the sterile glove package is to pick up the first glove (for the dominant hand) by grasping the inside of its folded cuff with the non-dominant bare hand. The key principle is that the inside of the glove cuff is the non-sterile portion — it is the surface that will contact the nurse's skin once the glove is on. Because it is non-sterile, a bare hand may safely touch it. The outer surface of the glove is the sterile surface that must not be touched by bare skin. Once the first glove is on the dominant hand, the sterile-gloved dominant hand picks up the second glove by sliding fingers under the outside of the cuff, touching only sterile surface. Choice A is incorrect; using the dominant hand to pick up the first glove would require it to touch the outer sterile surface before the glove is on. Choice C describes the second step, not the first. Choice B describes a later step (putting on the second glove) after the first glove is already donned.

Question 10

1. In the regular trash can at the bedside.
2. In a red biohazard bag or container. (correct answer)
3. In the puncture-resistant sharps container.
4. In the soiled linen hamper.

Explanation: Items saturated with blood or other potentially infectious body fluids are classified as regulated medical waste (biohazardous waste) and must be disposed of in a red biohazard bag or sealed biohazard container. This prevents exposure to bloodborne pathogens for housekeeping staff and others who handle waste, and ensures proper regulated disposal. Regular trash (A) is acceptable only for items that are not saturated — a small blood spot on gauze may qualify, but blood-soaked items do not, as they can drip or transfer infectious material. The sharps container (C) is designated for puncture-capable items such as needles, blades, and broken glass — not soft gauze. The linen hamper (D) is for contaminated textiles such as gowns and bed linens, not single-use disposable wound care items.

Question 11

1. Wait until the procedure is finished and then inform the colleague of the error.
2. Ignore the incident if the touch was very brief and did not leave a mark.
3. Immediately inform the colleague and assist in setting up a new sterile field. (correct answer)
4. Document that the colleague breached sterile technique in the client's chart.

Explanation: When a nurse observes unsafe practice that poses an immediate risk to a client, the professional and ethical obligation is to intervene immediately — not after the procedure, not privately later, and not by ignoring it. Contamination of a sterile field is a client safety issue; proceeding with a contaminated field exposes the client to preventable infection risk. The correct action is to immediately and calmly inform the colleague of the breach and collaborate to establish a new sterile field before continuing. This aligns with the LPN/VN's responsibility to respond to unsafe practices of health care personnel. Waiting until after the procedure (A) allows a contaminated field to be used on the client. Ignoring the incident (B) is never acceptable; the duration of contact is irrelevant — any contact with a non-sterile surface contaminates the field. Documenting the colleague's error in the client's chart (D) is inappropriate; the chart is a clinical record, not a personnel disciplinary tool — this would be addressed through incident reporting or direct communication with the supervisor if the behavior is a pattern.

Question 12

1. The mask prevents my skin cells from falling into the catheter site.
2. It protects me from any infections you might have in your blood.
3. The mask prevents germs from my mouth and nose from contaminating the site. (correct answer)
4. It is a standard hospital policy for all nurses regardless of the procedure.

Explanation: During central line dressing changes, the nurse wears a mask to prevent respiratory droplets and airborne organisms from the nurse's mouth and nose from contaminating the catheter insertion site or the sterile field. A central venous catheter provides a direct access route into the bloodstream, making the site extremely vulnerable to infection; even normal flora expelled during breathing or talking can introduce pathogens into a critically sensitive area. The primary purpose is to protect the client, not the nurse. Choice A is partially plausible — masks do reduce some skin cell and particle shedding — but respiratory droplets are the primary concern, and this explanation is less precise and educationally less useful than C. Choice B inverts the protective direction; the mask is for the client's protection, not the nurse's. Choice D is accurate as a fact but provides no meaningful education about the clinical rationale, which is what effective reinforcement teaching requires.

Question 13

1. Mask, gown, goggles, gloves.
2. Gown, mask, goggles, gloves. (correct answer)
3. Gloves, goggles, mask, gown.
4. Goggles, mask, gown, gloves.

Explanation: The standard sequence for donning PPE is gown first, then mask or respirator, then goggles or face shield, and finally gloves. This order is intentional: the gown is put on first to establish full body coverage before the nurse handles any additional items. Gloves are always last because they are the items most likely to become contaminated during subsequent donning steps, and they should cover and overlap the gown cuffs to prevent gaps in protection. Choice A (mask first) skips gown coverage and does not follow the established sequence. Choice C (gloves first) is the opposite of correct — gloves donned first would become contaminated while handling the remaining PPE items. Choice D (goggles first) similarly creates the same problem of contaminating subsequent items while struggling into the gown.

Question 14

1. The history of obesity and type 2 diabetes. (correct answer)
2. The client's age of 52 years.
3. The report of pulling pain at the incision site.
4. The fact that it is post-operative day 2.

Explanation: Both obesity and type 2 diabetes independently and synergistically increase SSI risk through multiple mechanisms. Diabetes impairs neutrophil and macrophage function, reducing the immune response to bacterial invasion, while chronic hyperglycemia promotes bacterial growth and impairs collagen synthesis needed for wound repair. Obesity reduces tissue perfusion in adipose layers (which are poorly vascularized), creates wound tension, and increases the depth and surface area of surgical incisions. Together, they represent the most significant modifiable risk profile in this client's history. Age of 52 (B) carries some risk but is not the predominant factor here. Pulling pain (C) may indicate early infection but is a current symptom, not a risk factor. Post-operative Day 2 (D) is an expected time point in any recovery and does not by itself elevate SSI risk beyond the baseline.

Question 15

1. The center of the sterile drape.
2. The sterile instruments placed in the middle of the field.
3. The 1-inch (2.5 cm) border around the edges of the drape. (correct answer)
4. The sterile gauze dropped from 6 inches above the field.

Explanation: The outer 1-inch (2.5 cm) border around the edges of a sterile drape is considered contaminated as a standard rule in surgical asepsis. This border may have been touched during the process of unfolding and setting up the drape, or it may have come into contact with non-sterile surfaces at the drape's edges. All sterile items must be placed in the inner zone — more than 1 inch from every edge. The center of the drape (A) is the primary sterile zone and is not contaminated if the field has been properly set up. Sterile instruments placed in the middle of the field (B) remain sterile as long as they have not been touched by non-sterile surfaces. Sterile gauze dropped onto the center of the field from a height of 6 inches (D) is an acceptable technique for introducing sterile supplies without contaminating the field, provided the item lands within the sterile boundary.

Question 16

1. Continue using the forceps if they do not look dirty.
2. Rinse the forceps with sterile saline and continue.
3. Discard the forceps and use a new sterile pair. (correct answer)
4. Wipe the forceps with an alcohol prep pad and proceed.

Explanation: The outer 1-inch border of a sterile drape is classified as non-sterile. When the sterile forceps contact this contaminated border, the forceps are immediately and irreversibly contaminated — regardless of whether contamination is visible. The instrument must be discarded and replaced with a new sterile pair before proceeding. Surgical asepsis does not permit judgment calls based on visual inspection; if sterility is compromised, it is treated as contaminated. Continuing without replacing the forceps (A) risks introducing microorganisms into an infected wound that is already at risk for systemic spread. Rinsing with sterile saline (B) cleans the surface but does not restore sterility. Wiping with an alcohol prep pad (D) applies medical asepsis principles to a surgical asepsis situation — alcohol cleaning does not render an instrument sterile.

Question 17

1. Place the sterile drape on the bedside table and keep it below the nurse's waist level.
2. Use clean, non-sterile gloves to arrange the instruments on the sterile drape.
3. Pour sterile saline into the basin while holding the bottle 10 inches (25 cm) above the field.
4. Ensure the sterile supplies are placed at least 1 inch (2.5 cm) away from the edge of the drape. (correct answer)

Explanation: The outer 1-inch (2.5 cm) border of a sterile drape is considered non-sterile because it has been in contact with the edges of the packaging and may have been touched during setup. All sterile supplies must be placed within the inner sterile zone — at least 1 inch from every edge — to ensure they are not inadvertently contaminated. Choice A describes the opposite of correct technique; sterile fields must be maintained at or above the nurse's waist level to keep them within the nurse's field of vision — a field below the waist is considered contaminated. Choice B is incorrect; arranging sterile instruments requires sterile gloves, not clean gloves. Choice C is incorrect; when pouring sterile solutions, the bottle should be held close to the basin (approximately 2 to 4 inches/5 to 10 cm) to avoid splashing, which can cause strike-through contamination — 10 inches is excessively high.

Question 18

1. It helps to lubricate the area so the catheter slides in more easily.
2. It reduces the number of bacteria near the opening to prevent infection. (correct answer)
3. It makes the skin more flexible for the insertion process.
4. It helps the nurse see the anatomy more clearly during the procedure.

Explanation: The purpose of aseptic cleaning prior to catheter insertion is to reduce the bacterial load at and around the urethral meatus — the entry point into the bladder. Using a front-to-back technique with antiseptic wipes minimizes the number of organisms available to be introduced into the sterile urinary tract during catheter insertion, thereby reducing the risk of catheter-associated urinary tract infection (CAUTI). This is especially important for a client performing self-catheterization at home, where the technique must be reliably executed without clinical oversight. Lubrication (A) is a separate step that facilitates insertion but is not the purpose of the cleaning technique. Making skin more flexible (C) is not a physiological effect of antiseptic cleaning. Improving visibility (D) applies to lighting and positioning, not to the cleaning technique itself.

Question 19

1. Open the first flap of the sterile wrap toward the nurse's body.
2. Touch only the inner 2-inch border of the sterile wrap when opening.
3. Open the side flaps and then the final flap toward the nurse's body. (correct answer)
4. Reach across the open sterile field to secure the corners of the wrap.

Explanation: The correct sequence for opening a sterile wrap is: first flap away from the nurse's body, then the two side flaps, and finally the near flap toward the nurse's body. This sequence is intentional — opening the far flap first prevents the nurse from reaching over the field to access a flap on the other side, which would risk contamination from the nurse's arm or sleeve falling over the sterile surface. The final flap is pulled toward the nurse because it is the closest flap and can be opened by reaching downward without crossing over the field. Choice A is incorrect; opening the first flap toward the nurse means the far side of the wrap remains closed and the nurse would subsequently have to reach over the field. Choice B is incorrect on two counts: the nurse should touch only the outer surface of the wrap itself (not the inner surface), and the contaminated border of a sterile drape is 1 inch, not 2 inches. Choice D directly violates aseptic technique; reaching across an open sterile field contaminates it.

Question 20

1. Above the level of the nurse's waist. (correct answer)
2. Below the level of the nurse's chest.
3. Covered by a clean towel when not in use.
4. Within 2 feet of the client's bed.

Explanation: Any sterile object — including gloved hands, instruments, and the sterile field itself — must remain above the nurse's waist level at all times. Below the waist is considered contaminated for two reasons: it falls outside the nurse's direct line of vision (a sterile field or item that cannot be continuously observed is considered contaminated, as an undetected breach cannot be corrected), and the area below the waist has higher bacterial concentrations from proximity to the floor and non-sterile environment. A sterile field or gloved hand that drops below waist level, even briefly, must be considered contaminated and replaced. Below chest level (B) is not the correct threshold. Covering with a clean towel (C) does not maintain sterility — the towel itself is clean, not sterile, and covering a sterile field with it contaminates the field. Proximity to the bed (D) is not a sterility criterion.