NCLEX Safety and Infection Control Practice Questions: 30 High-Yield Scenarios

Practice 30 NCLEX safety and infection control questions with rationales on standard precautions, PPE, isolation, RACE, CLABSI, and CAUTI.

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30 NCLEX Safety and Infection Control Practice Questions with Rationales

Safety and infection prevention are tested on every NCLEX exam — and they account for more questions than most students expect. This free 30-question NCLEX practice set covers every high-yield concept you need to know: standard precautions, PPE selection and sequence, airborne versus droplet versus contact isolation, hand hygiene rules, needlestick and sharps safety, fire safety, restraints, fall prevention, healthcare-associated infections (CLABSI, CAUTI), sterile technique, and more. Every question includes a detailed rationale that explains why the correct answer is right and why each distractor is wrong. Work through all 30, then review the key takeaways at the bottom to lock in your exam strategy. No signup required.

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Question 1: Standard Precautions — When to Use Them

Practice Question

A nurse is preparing to care for a client newly admitted to a medical-surgical unit. The client has no confirmed or suspected infection. Which infection-control action should the nurse implement?

Question 2: Hand Hygiene After C. difficile Care

Practice Question

The nurse assists a client with Clostridioides difficile infection to use the bedside commode and removes gloves after providing care. Which hand hygiene action is most appropriate?

Question 3: Airborne Precautions — Tuberculosis

Practice Question

A client is admitted with suspected pulmonary tuberculosis and is placed on airborne precautions. Which personal protective equipment should the nurse wear before entering the room?

Question 4: Contact Precautions — MRSA

Practice Question

A nurse is preparing to perform wound care for a client with methicillin-resistant Staphylococcus aureus (MRSA) in a draining wound. Which personal protective equipment (PPE) should the nurse apply before providing care?

Question 5: Droplet Precautions — Meningococcal Meningitis

Practice Question

A client admitted with suspected meningococcal meningitis is placed on infection-control precautions. Which personal protective equipment should the nurse wear when entering the client's room?

Question 6: Needlestick Injury — First Action

Practice Question

A nurse administers an injection and sustains a needlestick injury from the used needle. Which action should the nurse take first?

Question 7: Sharps Disposal Safety

Practice Question

A nurse observes a student nurse completing a capillary blood glucose check and preparing to discard the used lancet. Which student nurse action requires correction?

Question 8: Fire Safety — RACE Protocol

Practice Question

A nurse notices smoke coming from a trash can in a client’s room and immediately moves the client to a safe location. Which action should the nurse take next?

Question 9: Restraint Safety

Practice Question

While making rounds, the nurse observes that a client’s wrist restraints are secured to the movable side rails of the bed. Which action should the nurse take?

Question 10: Fall Prevention

Practice Question

A hospitalized client is identified as being at high risk for falls. Which intervention is appropriate for the nurse to include in the client’s plan of care?

Question 11: Varicella — Combined Airborne and Contact Precautions

Practice Question

A child is admitted with fever and a generalized pruritic vesicular rash. The nurse notes lesions in different stages of healing. Which transmission-based precautions should the nurse initiate?

Question 12: PPE Donning Sequence

Practice Question

A nurse is preparing to enter the room of a client on isolation precautions that require a gown, mask, goggles, and gloves. In which order should the nurse don the required personal protective equipment?

Question 13: PPE Doffing Sequence — Contact Precautions

Practice Question

A nurse is providing care for a client on contact precautions. The nurse’s gown and gloves are visibly contaminated after care. Which personal protective equipment should the nurse remove first?

Question 14: CLABSI Prevention — Central Line Hub Care

Practice Question

A nurse is preparing to access a client's central venous catheter for intravenous medication administration. Which action should the nurse take to reduce the risk for central line-associated bloodstream infection?

Question 15: CAUTI Prevention (Select All That Apply)

SATA Question

The nurse is caring for a client who has an indwelling urinary catheter. Which actions should the nurse take to reduce the risk for catheter-associated urinary tract infection (CAUTI)? Select all that apply.

Question 16: UAP Scope of Practice — Oxygen Safety

Practice Question

A client states to the unlicensed assistive personnel (UAP), “I can’t breathe.” Which UAP action requires correction by the nurse?

Question 17: Insulin Pen Safety

Practice Question

While preparing insulin for a hospitalized client, the nurse finds an insulin pen labeled with another client’s name in the client’s medication drawer. Which action is safest?

Question 18: Vancomycin Infusion Safety

Practice Question

A client has a prescription for intravenous vancomycin for a serious bacterial infection. Which nursing action is safest when administering this medication?

Question 19: Sterile Field — Contamination

Practice Question

The nurse prepares a sterile field before inserting an indwelling urinary catheter for an adult client. Which action by the nurse contaminates the sterile field?

Question 20: Live Vaccines and Immunocompromised Clients

Practice Question

The nurse is reviewing prescribed immunizations for a client with advanced HIV infection and a very low CD4 count. Which vaccine should the nurse question before administration?

Question 21: Hepatitis C — Transmission and Client Teaching

Practice Question

A nurse is providing discharge teaching to a client newly diagnosed with hepatitis C virus infection. Which client statement indicates an understanding of how to prevent transmission?

Question 22: Antibiotic Adherence — Client Teaching

Practice Question

A client being treated with antibiotics for pneumonia tells the nurse, “I stopped taking them after 3 days because I felt better.” Which response by the nurse is best?

Question 23: Infection Control Triage — Suspected Tuberculosis

Practice Question

Four clients are waiting in a shared emergency department triage area. From an infection-control perspective, which client should the nurse assess first?

Question 24: Pregnant Healthcare Worker — Assignment Safety

Practice Question

The charge nurse is reviewing client assignments for a pregnant nurse who has no documented evidence of varicella immunity. Which assignment should the charge nurse change?

Question 25: Neutropenic Precautions (Select All That Apply)

SATA Question

A hospitalized adult client has an absolute neutrophil count (ANC) of 350/mm³. Which interventions should the nurse implement? Select all that apply.

Question 26: C. difficile — Room and Toileting Safety

Practice Question

A client with suspected Clostridioides difficile infection is admitted with frequent watery diarrhea and is assigned to a semi-private room. Which infection-control action is most appropriate?

Question 27: Fall Risk Recognition

Practice Question

The nurse is reviewing fall-risk factors for several adult clients on a medical-surgical unit. Which client has the greatest risk for falls?

Question 28: Mucous Membrane Exposure — Eye Splash

Practice Question

During suctioning, respiratory secretions splash into the nurse’s eyes. Which action should the nurse take first?

Question 29: Fentanyl Patch Disposal

Practice Question

The nurse removes a used fentanyl transdermal patch from a client receiving opioid analgesia. Which action should the nurse take to dispose of the patch safely?

Question 30: Recognizing Unsafe Practice — Priority Intervention

Practice Question

While making rounds, the nurse observes several safety and infection-control practices on the unit. Which observed action requires immediate intervention?

Key Takeaways: NCLEX Safety and Infection Control

  • Standard precautions apply to every client regardless of diagnosis — blood, body fluids, non-intact skin, and mucous membranes are always treated as potentially infectious.
  • C. difficile spores resist alcohol-based hand sanitizer — always use soap and water hand hygiene after providing care to a client with C. difficile.
  • Tuberculosis requires an N95 respirator (airborne precautions) in a negative-pressure room — a surgical mask is never sufficient for TB.
  • Varicella requires both airborne AND contact precautions — N95, gown, and gloves are all required.
  • Meningococcal meningitis requires droplet precautions — a surgical mask within 3 feet of the client.
  • MRSA requires contact precautions — gloves and gown before entering the room or providing care.
  • PPE donning sequence: gown → mask → goggles → gloves. Gloves go on last to cover gown cuffs.
  • After a needlestick or eye splash, the first action is always immediate decontamination (soap and water for needlestick; water or saline irrigation for eye splash) — report and document after.
  • Sharps — including used lancets — must always go directly into an approved sharps container, never into regular trash.
  • RACE fire sequence: Rescue → Alarm → Contain → Extinguish. After removing the client, activate the alarm before attempting to extinguish the fire.
  • Restraints must be secured to the bed frame — never to side rails, which can injure the client when the rails are moved.
  • Insulin pens are client-specific and must never be shared between clients, even with a new needle attached.
  • IV vancomycin must be infused over at least 60 minutes to prevent vancomycin infusion reaction (flushing, hypotension).
  • CAUTI prevention: keep the drainage bag below bladder level, maintain a closed system, secure the catheter — and insert only when clinically indicated.
  • CLABSI prevention: scrub the hub with friction and let it dry completely before accessing the central line.
  • Neutropenic precautions: strict hand hygiene, screen visitors, avoid fresh flowers and raw produce, monitor temperature — negative-pressure rooms are not used for neutropenic clients.
  • Live vaccines (varicella, MMR, live-attenuated flu) require careful review and are generally contraindicated in severely immunocompromised clients.
  • A used fentanyl patch retains residual drug — fold adhesive sides together and dispose according to controlled-substance policy with a witness.

Frequently Asked Questions

What is the difference between airborne, droplet, and contact precautions on the NCLEX?
Airborne precautions are for pathogens spread by tiny particles that remain suspended in the air over long distances — tuberculosis, varicella, and measles are the classic NCLEX examples. They require an N95 respirator and a negative-pressure room. Droplet precautions are for larger particles (greater than 5 microns) that travel up to 3 feet — influenza, meningococcal meningitis, and pertussis. A surgical mask is sufficient. Contact precautions are for pathogens spread by direct or indirect physical contact — MRSA, C. difficile, and VRE. They require gloves and a gown. Varicella is the one infection that requires both airborne and contact precautions simultaneously.
How many NCLEX questions are on safety and infection control?
On the 2026 NCLEX-RN, safety and infection control falls under the Safe and Effective Care Environment client needs category. This category represents approximately 17–23% of the exam. Questions on infection control, standard precautions, PPE, safe medication administration, fall prevention, restraints, and environmental safety are all included in this domain.
Why can't alcohol-based hand sanitizer be used after caring for a C. difficile client?
C. difficile produces spores — a dormant, highly resistant form of the bacterium that can survive on surfaces for months and is not killed by the alcohol in hand sanitizers. The mechanical action of handwashing with soap and water physically removes the spores from the skin. This is why the CDC and APIC recommend soap and water hand hygiene (not hand sanitizer) after providing care to clients with C. difficile.
What does RACE stand for in fire safety for NCLEX?
RACE is the standard fire response mnemonic: R — Rescue (move clients away from danger), A — Alarm (activate the fire alarm), C — Contain (close doors and windows to slow fire spread), E — Extinguish (attempt to put out the fire if small and safe to do so). On the NCLEX, the question will often ask what to do after one step has already been completed — always follow the sequence in order.
What are the most common NCLEX traps in infection control questions?
Common NCLEX infection control traps include: choosing a surgical mask instead of an N95 for TB; choosing airborne precautions instead of droplet for meningococcal meningitis; forgetting that varicella requires both airborne AND contact precautions; selecting alcohol hand sanitizer for C. difficile instead of soap and water; believing insulin pens can be shared with a new needle; and using a negative-pressure room for neutropenic precautions instead of airborne isolation.

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