CNA Vital Signs Measurement 5

Question 1

A CNA notices a patient's nail beds are bluish when applying a pulse oximeter. This finding is called:

Accepted Answer

Cyanosis

Answer

Cyanosis is a bluish discoloration of the skin or mucous membranes due to low oxygen levels.

Question 2

When should the CNA NOT take a rectal temperature?

Accepted Answer

When the patient has had recent rectal surgery

Answer

Rectal temperature is contraindicated after rectal surgery, in patients with rectal disorders, or those on blood thinners.

Question 3

A patient's pulse is described as 'thready.' This means the pulse is:

Accepted Answer

Weak and difficult to feel

Answer

A thready pulse is weak, thin, and difficult to palpate, often indicating low cardiac output.

Question 4

Which of the following is the correct technique when counting respirations?

Accepted Answer

Count after finishing pulse measurement without informing the patient

Answer

Respirations are counted without the patient's knowledge because awareness causes patients to alter their breathing pattern.

Question 5

A blood pressure cuff that is too LARGE for the patient's arm will most likely result in:

Accepted Answer

A falsely low reading

Answer

A cuff that is too large produces a falsely low blood pressure reading because more pressure is needed to compress a larger area.

CNA Practice Test