In the print window, choose “Save as PDF” to keep a copy on your device.
1Formulas and methods
Nursing assistant (CNA) knowledge
Method
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.
Ask whether the task is within the nursing assistant’s scope and training; if not, decline politely and tell the nurse.
Respect the resident’s rights: privacy, choice, refusal of care, dignity and freedom from abuse and unneeded restraints.
Apply the basic rules: hand hygiene, body mechanics, bed low and call light within reach, weak side first when dressing.
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
Write the given quantity with its unit and the unit you want.
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.
Write it as a fraction so that the unwanted unit cancels; for a rate, use one fraction per unit that changes.
Check the direction: a smaller unit gives a bigger number.
Round only the final answer, to the precision the question names.
2Practice problems
1.Nursing assistant (CNA) knowledgeMedium
During passive range-of-motion exercises, the resident says the movement hurts. What should the nursing assistant do?
AMove the joint further to stretch it out
BRepeat the movement faster so it is over sooner
CStop the movement and report it to the nurse
DContinue gently, because some pain is normal
2.Nursing assistant (CNA) knowledgeHard
A resident has collapsed while touching a lamp with a damaged cord. What should the nursing assistant do first?
APull the resident away from the lamp with bare hands
BNot touch the resident until the power is safely turned off, and call for help
CPour water on the lamp to stop the current
DStart CPR immediately, even while the resident's hand is still touching the lamp
3.Nursing math & unit conversionsMedium
Practice exercise (made-up values, not clinical guidance). A dose is charted at 23:10 (24-hour clock). Which entry is the same time on the 12-hour clock? Click it.
23:10
111:10 PM
210:10 PM
31:10 PM
411:10 AM
4.Nursing math & unit conversionsHard
Practice exercise (made-up values, not clinical guidance). A prescription reads 2 tsp of an oral suspension three times a day for 14 days. The suspension comes in 150 mL bottles. Using 1 tsp = 5 mL, how many whole bottles N must be supplied so the course is complete?
2 tspthree times a day14 days150 mL1 tsp = 5 mL
N =
3Solutions
1.Nursing assistant (CNA) knowledge
Answer: C · Stop the movement and report it to the nurse
Why this is the answer
Each joint is moved gently only as far as it goes without pain or resistance. If the resident has pain, stop and report it to the nurse.
Answer
C · Stop the movement and report it to the nurse
2.Nursing assistant (CNA) knowledge
Answer: B · Not touch the resident until the power is safely turned off, and call for help
Why this is the answer
A person in contact with live electricity can shock the rescuer. The power is turned off or the plug pulled safely, then help is called and the resident is checked. Water conducts electricity and is never used.
Answer
B · Not touch the resident until the power is safely turned off, and call for help
3.Nursing math & unit conversions
Answer: 11:10 PM
24-hour clock: from 1 PM onwards add 12 to the hour (3:45 PM = 15:45). Midnight to 12:59 AM is 00:00–00:59, and 12:00–12:59 PM stays 12:00–12:59. Going back, subtract 12 from hours 13–23 and add PM; hours 00 become 12 AM. Count time across midnight in two parts: up to 24:00 (00:00), then from 00:00 on.
Convert the hour
23 − 12 = 11 → PM
Answer
11:10 PM
Answer
11:10 PM
4.Nursing math & unit conversions
Answer: N = 3
Dimensional analysis: write the given quantity, then multiply by conversion factors written as fractions (for example 60 min/1 h or 1 mg/1000 mcg) so that each unwanted unit appears once on top and once underneath and cancels. When only the wanted unit is left, calculate. Use the equivalents the question gives and round only the final answer.
Total volume
10 mL × 3 × 14 = 420 mL
Bottles
420/150 = 2.8 → N = 3
Answer
N = 3
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.