Free CNA Practice Test

Infection Control

25 NNAAP-style questions with instant answers and explanations.

Free CNA infection-control practice test covering the chain of infection, hand hygiene, standard and transmission-based precautions, PPE donning and doffing, and disposal of biohazardous waste. Drawn from the NNAAP content outline so the questions match what you will see on the written exam.

Need a refresher first? Read our free Infection Control study guide before taking the test.

Q1· Hand hygiene

Which of the following is the single most effective method for preventing the spread of infection in a long-term care facility?

Q2· Hand hygiene

How long should a CNA scrub the hands with soap and water during routine hand washing?

Q3· Transmission-based precautions

A resident is on contact precautions for MRSA. Which personal protective equipment must the CNA wear before entering the room?

Q4· PPE

Which sequence is correct when REMOVING personal protective equipment after care?

Q5· Chain of infection

Which of the following is NOT one of the six links in the chain of infection?

Q6· Transmission-based precautions

A resident has a known diagnosis of pulmonary tuberculosis. Which type of precautions must the CNA follow?

Q7· Standard precautions

Which body fluid is NOT considered potentially infectious under standard precautions?

Q8· Biohazard

Where should a used disposable syringe with an attached needle be placed after giving care?

Q9· Hand hygiene

A resident has C. difficile (C. diff) diarrhea. Which hand-hygiene method is required after care?

Q10· PPE

When applying personal protective equipment for isolation, which item is donned LAST?

Q11· Asepsis

Which action best demonstrates 'medical asepsis'?

Q12· Bloodborne exposure

A CNA accidentally sticks themselves with a used needle while changing linens. What is the FIRST action they should take?

Q13· Standard precautions

Which precaution is correct when handling soiled linens?

Q14· Transmission-based precautions

Which residents require droplet precautions?

Q15· Asepsis

When cleaning a resident's room, the CNA should always work:

Q16· Chain of infection

Which is a correct example of breaking the chain of infection at the 'portal of exit' link?

Q17· PPE

A resident with a productive cough has a positive TB skin test. The CNA must wear what type of mask?

Q18· PPE

Which statement about gloves is TRUE?

Q19· Chain of infection

Which of the following is the BEST example of a 'reservoir' in the chain of infection?

Q20· Hand hygiene

When should hand hygiene be performed?

Q21· CAUTI prevention

Which is the BEST way to prevent a urinary catheter–associated infection (CAUTI)?

Q22· Bloodborne exposure

What is the correct response if a CNA accidentally splashes blood into the eyes?

Q23· Chain of infection

Which of the following is considered a 'fomite'?

Q24· Transmission-based precautions

A resident in isolation needs to be transported to radiology. What should the CNA do?

Q25· Standard precautions

The single most important reason CNAs use standard precautions with EVERY resident is:

FAQ: Infection Control on the CNA Exam

How many infection control questions are on the actual NNAAP exam?

The NNAAP written exam has 60 scored questions distributed across eight content areas. Infection Control is one of the most heavily tested categories, with several questions appearing on every form of the exam. Drilling these questions repeatedly until you can explain why each correct answer is correct is the best way to lock in the material.

What should I do if I miss several questions on this infection control practice test?

Re-read the corresponding free study guide (linked above and below) before retaking the test. Take notes on the exact concept you missed — for example, 'I confused contact and droplet precautions' — and review the explanations until the pattern is clear. Most students need 2 to 3 cycles of test, review, and retake before consistently scoring above 80%.

Are these questions identical to the real CNA exam?

No. The actual NNAAP, Prometric, Headmaster, and PSI exams are confidential and only the official testing vendors have access to live items. Our questions are written by us to mirror NNAAP style, difficulty, and content distribution based on the publicly available NNAAP content outline. Performing well here is a strong predictor of passing the real test.

Do I have to pay or sign up to take this practice test?

No. Every practice test, study guide, and resource on freecnatraining.org is 100% free, with no signup or paywall. Most other CNA practice test sites charge $30 to $100 per month for access; we are funded by our nursing-school directory and keep the study material free for students.