Nursing assistant (CNA) knowledge worksheet with answers

Which is the largest organ of the human body?

1. AThe brain
2. BThe skin
3. CThe liver
4. DThe lungs

Which stance gives a nursing assistant the most stable base of support?

1. AFeet close together
2. BStanding on the toes
3. CStanding on one foot while reaching
4. DFeet about shoulder-width apart

What is a closed bed?

1. AA bed with the side rails raised and locked
2. BA bed with the top linens folded down so that the resident can get in easily
3. CA bed made with the top linens pulled up, kept ready for a new resident
4. DA bed made while the resident lies in it

What usually happens if a blood pressure cuff is too small for a resident's arm?

1. AThe reading is falsely high
2. BThe pulse cannot be felt at the wrist
3. CThe reading is falsely low
4. DThe reading is not affected

A resident with an intellectual disability is learning to make his own bed. Which approach helps most?

1. ATeach one simple step at a time, praise success and be patient
2. BMake the bed for him because it is faster
3. CCorrect every mistake in front of others
4. DExplain all the steps at once, then leave him to try it on his own

Which practice helps prevent skin tears in an older resident?

1. AHolding the resident firmly by the wrists during transfers
2. BRubbing the skin briskly with a towel after bathing
3. CSecuring dressings and tubing with strong adhesive tape on the skin
4. DUsing a lift sheet instead of pulling on the arms or legs

A resident has been in a lap belt restraint (ordered) for 2 hours. What should the nursing assistant do?

1. ARelease it and leave the resident alone without telling anyone
2. BRelease it, reposition the resident, offer the toilet and fluids, and check the skin
3. CLeave it on, because it was ordered for the whole shift
4. DTighten it, because the resident has been moving a lot

After 10 minutes, a resident's skin under an ice pack looks pale and white, and she says it feels numb. What should the nursing assistant do?

1. ALeave it on because the cold is working well
2. BAdd more ice to the pack
3. CRemove the ice pack and report it to the nurse
4. DMove the ice pack directly onto the skin