Nursing assistant (CNA) knowledge worksheet with answers

How many chambers does the human heart have?

1. AThree
2. BSix
3. CFour
4. DTwo

What is a hallucination?

1. ASeeing, hearing or feeling something that is not really there
2. BMisreading something that is really there, like a coat seen as a person
3. CForgetting where something was put
4. DA false belief that is held even when proof shows it is wrong

How is HIV spread?

1. AThrough the air when an infected person coughs or sneezes
2. BBy sharing dishes, cups and toilets with an infected person
3. CThrough casual contact, such as hugging or shaking hands
4. DThrough blood and certain body fluids, such as by shared needles

With aging, which kind of sounds are often the first to become hard to hear?

1. ALoud sounds
2. BThe person's own voice
3. CHigh-pitched sounds
4. DLow-pitched sounds

A nursing assistant notices that a task on the care plan no longer seems to fit a resident's needs. What should the nursing assistant do?

1. AKeep following the plan and say nothing
2. BChange the written care plan so that it matches the resident's needs
3. CStop doing the task without telling anyone
4. DReport what they see to the nurse, who can review the plan

A resident has right-sided weakness after a stroke. Why must the right side be positioned carefully and checked often?

1. AShe may not feel pressure or pain on that side
2. BThe right side always heals faster than the left
3. CThe right side is stronger and needs less support
4. DShe will feel more pain on that side than normal

A resident with COPD is short of breath and asks the nursing assistant to turn up her oxygen. What should the nursing assistant do?

1. ATurn the oxygen off for a while and open a window for fresh air
2. BHelp her sit up, explain only the nurse adjusts oxygen, and call the nurse
3. CTurn the oxygen up a little, then tell the nurse what was done
4. DTell her to rest quietly and wait until the nurse comes by on the next round

At the start of a shift, a nursing assistant finds a resident lying in linen soaked with old urine, and the call light is out of reach. What should the nursing assistant do?

1. AGive care right away and report the finding to the nurse
2. BClean the resident and say nothing to protect the last shift
3. CAsk the resident not to tell anyone
4. DLeave the resident until the scheduled check