CNA practice test (nurse aide knowledge exam practice): cram pack

Formula sheets, the key method steps for every topic and 4 practice problems, with full solutions at the back.

New problemsBack to the course

In the print window, choose “Save as PDF” to keep a copy on your device.

1Formulas and methods

Nursing assistant (CNA) knowledge

Method

  1. Check whether the resident is in danger right now (not breathing, choking, a fall, chest pain, stroke signs); if so, keep them safe and get the nurse at once.
  2. Ask whether the task is within the nursing assistant’s scope and training; if not, decline politely and tell the nurse.
  3. Respect the resident’s rights: privacy, choice, refusal of care, dignity and freedom from abuse and unneeded restraints.
  4. Apply the basic rules: hand hygiene, body mechanics, bed low and call light within reach, weak side first when dressing.
  5. Observe and report: compare with the resident’s usual state and report changes promptly and objectively.

Nursing math & unit conversions

Metric steps
1 kg = 1000 g, 1 g = 1000 mg, 1 mg = 1000 mcg, 1 L = 1000 mL
Weight and length
1 kg = 2.2 lb, 1 lb = 16 oz, 1 in = 2.54 cm, 1 ft = 12 in
Household measures
1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 8 fl oz = 240 mL
Temperature
°C = (°F − 32)·5/9, °F = °C·9/5 + 32
24-hour clock
PM hours 1–11: add 12; 12 AM = 00:xx; 12 PM = 12:xx
Dose rate
mcg/min × 60/1000 = mg/h
Laboratory factors
glucose 1 mmol/L = 18 mg/dL; creatinine 1 mg/dL = 88.4 µmol/L; Hb 1 g/dL = 10 g/L

Method

  1. Write the given quantity with its unit and the unit you want.
  2. Pick the equivalent: 1000 between kg, g, mg and mcg or L and mL; 1 kg = 2.2 lb; 1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 240 mL.
  3. Write it as a fraction so that the unwanted unit cancels; for a rate, use one fraction per unit that changes.
  4. Check the direction: a smaller unit gives a bigger number.
  5. Round only the final answer, to the precision the question names.

2Practice problems

1.Nursing assistant (CNA) knowledgeMedium

A nursing assistant suspects that a resident is being abused. When should this be reported?

  1. AAfter first asking the family if they know about it
  2. BOnly after collecting proof that the abuse happened
  3. CAt the end of the week, when the care plans are reviewed
  4. DImmediately, to the nurse or supervisor
2.Nursing assistant (CNA) knowledgeHard

A nursing assistant wakes up with a fever and a cough before a shift. What is the best action?

  1. ATake a fever reducer at home so the fever does not show, and work
  2. BCall the supervisor before the shift, following facility policy
  3. CGo to work and tell no one
  4. DGo to work and wear gloves and a mask all day
3.Nursing math & unit conversionsMedium
94969810010210410635363738394041°F°C103 °F? °C

Practice exercise (made-up values, not clinical guidance). A patient’s temperature is 103 °F. Convert it to degrees Celsius T with °C = (°F − 32) × 5/9. Round to one decimal place.

103 °F
T = °C
4.Nursing math & unit conversionsHard
6 fl oz? mL2 cups? mL3 tsp? mLΣ = ? mL

Practice exercise (made-up values, not clinical guidance). During a shift a patient takes 6 fl oz of juice, 2 cups of tea, 3 tsp of cough syrup. Using the equivalents given, find the total oral intake V in mL.

1 fl oz = 30 mL1 cup = 8 fl oz = 240 mL1 tsp = 5 mL
V = mL

3Solutions

1.Nursing assistant (CNA) knowledge

Answer: D · Immediately, to the nurse or supervisor

Why this is the answer

Nursing assistants must report suspected abuse or neglect at once; they do not need proof and do not investigate themselves. Delaying puts the resident at risk, and failing to report can itself be a violation.

Answer

D · Immediately, to the nurse or supervisor
2.Nursing assistant (CNA) knowledge

Answer: B · Call the supervisor before the shift, following facility policy

Why this is the answer

Staff who are ill can spread infection to residents, who are often frail. The nursing assistant follows the facility's illness policy and tells the supervisor before the shift so care can be covered.

Answer

B · Call the supervisor before the shift, following facility policy
3.Nursing math & unit conversions

Answer: T = 39.4 °C

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.

Subtract 32

103 − 32 = 71

Multiply by 5/9

T = 71·5/9 = 39.44 ≈ 39.4 °C

Answer

T = 39.4 °C
4.Nursing math & unit conversions

Answer: V = 675 mL

Household measures and weight: nursing exams use rounded equivalents: 1 teaspoon (tsp) = 5 mL, 1 tablespoon (tbsp) = 15 mL = 3 tsp, 1 fluid ounce (fl oz) = 30 mL = 2 tbsp, and 1 cup = 8 fl oz = 240 mL. For weight, 1 kg = 2.2 lb and 1 lb = 16 oz; for length, 1 inch = 2.54 cm. Set the conversion up so that the unit you do not want cancels out.

Each item in mL

6 fl oz = 6·30 = 180 mL
2 cups = 2·240 = 480 mL
3 tsp = 3·5 = 15 mL

Add

V = 180 + 480 + 15 = 675 mL

Answer

V = 675 mL

This is independent practice material. ExamProblems is not affiliated with or endorsed by the organisation that runs this exam, and the exam name is used only to describe the content.

ExamProblems · examproblems.com/courses/cna-practice-test