CNA practice test (nurse aide knowledge exam practice): practice problems and exam questions

Practice questions for the written (knowledge) part of certified nursing assistant and nurse aide exams: the nursing assistant’s role and scope, communication, residents’ rights and abuse reporting, infection control, safety and body mechanics, emergencies, daily care, nutrition and intake and output, positioning and skin care, vital signs, transfers, dementia and end-of-life care, and observing and reporting changes. Easy questions check key facts, medium ones the right way to do a task, and hard ones are scenarios that ask what to do first or what to report. The questions are state-neutral; your state’s exam and its rules may differ in detail. The hands-on skills test is not covered here and has to be practised in your training program.

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Cram pack (PDF)Formula sheets, method steps and practice problems with full solutions, ready to print.

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Topics in this course

  1. Nursing assistant (CNA) knowledgekey terms and facts · applying the concepts · cases and analysismultiple choice
  2. Nursing math & unit conversionsmetric, weight and household units · temperature, 24-hour clock and rounding · dimensional analysis chainscalculations

Exam tips for CNA practice test (nurse aide knowledge exam practice)

  • In scenario questions, pick the answer that keeps the resident safe, respects their rights and involves the nurse.
  • If an answer has the nursing assistant giving medicines, changing an order or keeping a secret, it is almost always wrong.
  • Use the nursing math topic (first two levels) for ounces to milliliters and the 24-hour clock.

Worked examples

Nursing assistant (CNA) knowledgeEasy

Under OSHA rules, how is the hepatitis B vaccine offered to nursing assistants who may be exposed to blood?

  1. AOnly to workers older than 50
  2. BOnly if the worker pays for it
  3. COnly after an exposure has happened
  4. DBy the employer, free of charge
Show hints
  1. The employer is responsible for protecting workers from bloodborne pathogens.
  2. Two wrong answers are now crossed out. One of the remaining two is right.
Show the answer and explanation

Why this is the answer

The OSHA Bloodborne Pathogens Standard requires employers to offer the hepatitis B vaccine at no cost to workers who may be exposed to blood or body fluids. The worker may decline it.

Answer

D · By the employer, free of charge
Nursing math & unit conversionsMedium
94969810010210410635363738394041°F°C? °F40.4 °C

Practice exercise (made-up values, not clinical guidance). A patient’s temperature is 40.4 °C. Convert it to degrees Fahrenheit T with °F = °C × 9/5 + 32. Round to one decimal place.

40.4 °C

Find T (°F)

Show hints
  1. Multiply by 9/5 (that is 1.8) first.
  2. 40.4·1.8 = 72.72.
  3. Then add 32.
Show the answer and the step-by-step solution

Temperature: °C = (°F − 32) × 5/9 and °F = °C × 9/5 + 32. Subtract 32 before you multiply when going from °F, and add 32 after you multiply when going from °C. A quick check: 37 °C is 98.6 °F, and every 1 °C is 1.8 °F.

Multiply by 9/5

40.4·9/5 = 72.72

Add 32

T = 72.72 + 32 = 104.7 °F

Answer

T = 104.7 °F

How practising works

  • “Practise this course” mixes problems from all its topics, like a real exam.
  • Every problem has new values, so you learn the method instead of an answer.
  • Stuck? Open a small hint first, and the full explanation only when you need it.
  • Mock exams are timed and have no hints, and you get your score and a full review at the end.

Calculators for this course

Nursing unit converter (mg, mcg, kg, lb, mL, tsp, °F, °C)

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