Nursing assistant (CNA) knowledge worksheet with answers

What is a resting adult pulse below 60 beats per minute called?

1. ATachycardia
2. BHypertension
3. CApnea
4. DBradycardia

When a resident lies on their back, which areas are at the greatest risk of pressure injury?

1. AThe abdomen and the chest
2. BThe palms of the hands
3. CThe tailbone (sacrum) and the heels
4. DThe knees and the fronts of the thighs

Which single measure is most important for preventing the spread of infection in a care facility?

1. AAsking the doctor to prescribe antibiotics
2. BWearing gloves for every task
3. CHand hygiene
4. DKeeping windows open in all rooms

When cleaning dentures at a sink, why is the sink lined with a towel or partly filled with water?

1. ATo cushion the dentures in case they are dropped
2. BTo keep the water from getting too hot
3. CTo make the denture cleaner work faster on stains
4. DTo soak up any toothpaste that falls

What is Cheyne-Stokes breathing, which may be seen near death?

1. ABreathing in through the nose and out through pursed lips
2. BCoughing that brings up a large amount of thick yellow sputum
3. CSteady, quiet breathing at about 16 breaths per minute
4. DDeep, then shallow breaths, followed by pauses with no breathing

How does a nursing assistant protect a resident's privacy during personal care?

1. AUncover the resident fully to save time
2. BClose the door and curtain, and keep the resident covered except where care is given
3. CLeave the door open so other staff can help quickly
4. DTalk about the care loudly so the roommate knows what is happening

A resident who uses oxygen by nasal cannula has dry, cracked lips and asks for petroleum jelly. What should the nursing assistant do?

1. ARemove the cannula for the rest of the day
2. BTurn off the oxygen while applying the jelly
3. CApply petroleum jelly to the lips and nostrils to soothe the dryness
4. DTell the nurse and use a water-based lubricant if approved

An older resident has very dry, flaky skin. Which bathing practice is best for him?

1. AAdd rubbing alcohol to the bath water
2. BUse mild soap sparingly, rinse well, pat dry and apply lotion
3. CRub the skin hard with a rough towel to remove all of the flakes
4. DUse hot water and plenty of soap every day