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
A resident with dementia asks the same question many times. What should the nursing assistant do?
AAnswer calmly each time, using the same simple words
BIgnore the question until she stops asking
CRemind her she has already asked several times
DTell her to write the answer down and stop asking
2.Nursing assistant (CNA) knowledgeHard
A resident complains to the nursing assistant that her meals always arrive cold. What should the nursing assistant do?
ATell her that all residents get cold food, so it is normal
BTell her that complaining may make the kitchen staff angry
CListen, report it to the nurse and assure her she may complain without punishment
DIgnore the complaint because meals are not part of the nursing assistant's job
3.Nursing math & unit conversionsMedium
Practice exercise (made-up values, not clinical guidance). A dose is charted at 13:05 (24-hour clock). Which entry is the same time on the 12-hour clock? Click it.
13:05
13:05 PM
21:05 PM
312:05 PM
41:05 AM
4.Nursing math & unit conversionsHard
Practice exercise (made-up values, not clinical guidance). An infusion starts at 21:50 and finishes at 07:40 the next morning (24-hour clock). How many hours t did it run? Give the answer in hours as a decimal, rounded to two decimal places.
21:5007:40
t = h
3Solutions
1.Nursing assistant (CNA) knowledge
Answer: A · Answer calmly each time, using the same simple words
Why this is the answer
Memory loss means the resident may not remember the earlier answer. Patiently answering in the same calm, simple way, or gently redirecting her, reduces frustration. Pointing out the repetition can cause embarrassment.
Answer
A · Answer calmly each time, using the same simple words
2.Nursing assistant (CNA) knowledge
Answer: C · Listen, report it to the nurse and assure her she may complain without punishment
Why this is the answer
Residents have the right to make complaints without fear of retaliation and to have them addressed. The nursing assistant listens, reports the complaint and follows up so it can be fixed.
Answer
C · Listen, report it to the nurse and assure her she may complain without punishment
3.Nursing math & unit conversions
Answer: 1:05 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
13 − 12 = 1 → PM
Answer
1:05 PM
Answer
1:05 PM
4.Nursing math & unit conversions
Answer: t = 9.83 h
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.
Before midnight
21:50 → 24:00 = 130 min
After midnight
00:00 → 07:40 = 460 min
Total
130 + 460 = 590 min
t = 590/60 = 9.833 ≈ 9.83 h
Answer
t = 9.83 h
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.