CNA CNA Vital Signs and Measurements 3

Question 1

A CNA is preparing to measure a resident's blood pressure. What should the cuff size be based on?

Accepted Answer

The size of the resident's arm circumference

Answer

The blood pressure cuff must be sized to fit the arm circumference; an incorrect size produces inaccurate readings.

Question 2

When should a CNA measure and record a resident's intake and output (I&O)?

Accepted Answer

Every shift, when ordered by the nurse or care plan

Answer

I&O measurements are recorded every shift when ordered, to monitor fluid balance and kidney function.

Question 3

What action should a CNA take FIRST when a resident's oral temperature reads 103.2°F?

Accepted Answer

Report the temperature to the nurse immediately

Answer

A temperature of 103.2°F is a high fever and must be reported to the nurse immediately for prompt intervention.

Question 4

Which device is used to measure a resident's oxygen saturation at the bedside?

Accepted Answer

Pulse oximeter

Answer

A pulse oximeter, placed on a finger or earlobe, uses light to non-invasively measure blood oxygen saturation.

Question 5

When documenting vital signs, what information must the CNA always include?

Accepted Answer

The reading, time taken, and the CNA's signature or initials

Answer

Accurate documentation requires the measurement value, the time it was taken, and the CNA's identification.

CNA Practice Test