UNAR Vital Signs Measurement 5

Question 1

A resident's blood pressure was 118/76 mmHg this morning and is now 88/58 mmHg after standing up. This drop is called:

Accepted Answer

Orthostatic (postural) hypotension

Answer

Orthostatic hypotension is a significant drop in blood pressure (≥20 mmHg systolic or ≥10 mmHg diastolic) upon standing, which increases fall risk.

Question 2

A CNA notices a resident's pulse oximeter reading is 88%. What action should the CNA take first?

Accepted Answer

Reposition the probe and reassess, then report to the nurse if still low

Answer

The CNA should first check for probe issues (nail polish, poor circulation, movement), then report the persistent low reading to the nurse; administering oxygen requires a nurse's order.

Question 3

Which factor can cause a pulse oximeter reading to be falsely LOW?

Accepted Answer

Poor peripheral circulation or cold fingers

Answer

Poor peripheral circulation, cold extremities, or nail polish can interfere with the light sensor and produce falsely low SpO2 readings.

Question 4

When documenting vital signs, the CNA should record which of the following in addition to the values?

Accepted Answer

The date, time, site used, and any resident complaints related to the measurement

Answer

Accurate documentation includes the date, time, measurement site, the values obtained, and any relevant observations or resident complaints.

Question 5

A CNA obtains a blood pressure reading that seems much higher than the resident's baseline. What is the BEST next step?

Accepted Answer

Recheck the blood pressure in the same arm after a few minutes and report the finding to the nurse

Answer

Rechecking after a short rest confirms whether the elevated reading is accurate, and the finding must always be reported to the nurse for clinical decision-making.

(UNAR) Utah Nursing Assistant Registry Practice Test

(UNAR) Utah Nursing Assistant Registry Practice Test

UNAR Vital Signs Measurement 5