护理助理（CNA）知识练习卷（附答案）

What is one effect of a cold application?

1. AIt increases swelling in the area
2. BIt reduces swelling and numbs pain
3. CIt widens the blood vessels and increases bleeding
4. DIt raises the temperature of the area

What is a living will?

1. AA daily schedule of care written by the nursing assistant
2. BA list of the visitors a resident wants to see each week
3. CA document stating how a person's money and property are divided among the family after death
4. DA document stating which treatments a person wants if they cannot speak for themselves

在护理机构中，预防感染传播最重要的单一措施是什么？

1. A每项操作都戴手套
2. B所有房间都开窗
3. C请医生开抗生素
4. D手卫生

Before collecting a sputum specimen, what should the resident do?

1. AEat a light breakfast
2. BRinse the mouth with plain water
3. CRinse the mouth with mouthwash
4. DBrush the teeth with toothpaste and not rinse

How quickly should a blood pressure cuff be deflated during a manual reading?

1. AAbout 20 mmHg per second to save time
2. BIn large jumps, stopping between them
3. CAll at once, by opening the valve fully and quickly
4. DSlowly and steadily, about 2 to 4 mmHg per second

During postmortem care, how is the body usually positioned?

1. AOn the left side, with the knees bent
2. BOn the stomach, with the face turned down toward the mattress
3. COn the back, with a pillow under the head and shoulders
4. DSitting upright in a chair

While emptying an ostomy pouch, the nursing assistant notices that the stoma is dark purple-black. What should be done?

1. AReport it to the nurse immediately
2. BApply a new pouch and check again tomorrow
3. CClean it with soap and water and record it
4. DCover it with a gauze pad and tell the next shift

A nursing assistant is about to empty a full urinary drainage bag, and the urine might splash. Under standard precautions, which PPE is most appropriate?

1. ANo PPE, because urine is not a body fluid
2. BGloves and eye protection, plus a gown if clothes may be splashed
3. COnly a surgical mask, since splashes are rare
4. DGloves only, because splashes from a drainage bag never reach the face