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
Which is a good time-management habit for a nursing assistant?
ADoing the easiest tasks first, whatever their importance
BWaiting for the nurse to tell them each task one at a time during the shift
CPlanning the shift's tasks by priority at the start of the shift
DLeaving all documentation until the end of the week
2.Nursing assistant (CNA) knowledgeHard
During a bath, the nursing assistant notices a new, dark mole with an irregular edge on a resident's back. What should be done?
AScrub the mole gently to see if it comes off
BTell the resident it is probably skin cancer
CReport the observation to the nurse
DIgnore it because moles are common in older adults
3.Nursing math & unit conversionsMedium
Practice exercise (made-up values, not clinical guidance). A patient’s temperature is 95.9 °F. Convert it to degrees Celsius T with °C = (°F − 32) × 5/9. Round to one decimal place.
95.9 °F
T = °C
4.Nursing math & unit conversionsHard
Practice exercise (made-up values, not clinical guidance). A prescription reads 1½ tsp of an oral suspension three times a day for 5 days. The suspension comes in 100 mL bottles. Using 1 tsp = 5 mL, how many whole bottles N must be supplied so the course is complete?
1½ tspthree times a day5 days100 mL1 tsp = 5 mL
N =
3Solutions
1.Nursing assistant (CNA) knowledge
Answer: C · Planning the shift's tasks by priority at the start of the shift
Why this is the answer
Reviewing the assignment and planning tasks by priority, while staying flexible for emergencies, helps nursing assistants give safe care on time. Documentation is done promptly after care.
Answer
C · Planning the shift's tasks by priority at the start of the shift
2.Nursing assistant (CNA) knowledge
Answer: C · Report the observation to the nurse
Why this is the answer
Skin changes such as new or changing moles, sores, rashes or bruises are reported to the nurse. The nursing assistant does not diagnose or alarm the resident.
Answer
C · Report the observation to the nurse
3.Nursing math & unit conversions
Answer: T = 35.5 °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
95.9 − 32 = 63.9
Multiply by 5/9
T = 63.9·5/9 = 35.5 °C
Answer
T = 35.5 °C
4.Nursing math & unit conversions
Answer: N = 2
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
7.5 mL × 3 × 5 = 112.5 mL
Bottles
112.5/100 = 1.125 → N = 2
Answer
N = 2
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.