CNA Vital Signs and Measurements 2

Question 1

A resident's blood pressure reads 158/96 mmHg. What is the diastolic pressure?

Accepted Answer

96 mmHg

Answer

The diastolic pressure is the second (lower) number, which represents pressure in the arteries when the heart rests between beats.

Question 2

Which site is MOST appropriate for measuring temperature in an unconscious patient?

Accepted Answer

Rectal

Answer

Rectal temperature is preferred for unconscious patients because oral measurement requires cooperation and a closed mouth.

Question 3

When taking a radial pulse, you count 36 beats in 30 seconds. What do you document?

Accepted Answer

72 beats per minute

Answer

Multiply the 30-second count by 2 to convert to beats per minute: 36 × 2 = 72 bpm.

Question 4

A CNA is measuring a resident's respirations. The resident asks what is being done. What should the CNA do?

Accepted Answer

Say you are checking the pulse to avoid altering breathing rate

Answer

Patients who know their respirations are being counted may consciously alter their breathing, so CNAs often count respirations after pulse assessment without telling the patient.

Question 5

Normal oxygen saturation (SpO2) for a healthy adult is:

Accepted Answer

95–100%

Answer

Normal SpO2 is 95–100%; readings below 90% are generally considered hypoxic and require prompt reporting.

CNA Practice Test

CNA Practice Test

CNA Vital Signs and Measurements 2