Vital Signs Measurement Flashcards
7 cards from real CNA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Vital Signs Measurement flashcards as text
A patient's blood pressure reads 158/96 mmHg. Which category does this fall under according to AHA guidelines?
Answer: Stage 2 hypertension
Stage 2 hypertension is defined as systolic ≥140 mmHg or diastolic ≥90 mmHg.
When measuring an oral temperature, how long should the thermometer remain under the patient's tongue?
Answer: 2–3 minutes
An oral thermometer should remain in place for 2–3 minutes to obtain an accurate reading.
A CNA is measuring a patient's pulse and notices it is irregular. What is the best action?
Answer: Count for a full 60 seconds and report the irregularity
An irregular pulse should be counted for a full 60 seconds and reported to the nurse for further evaluation.
Which site is CONTRAINDICATED for temperature measurement in a patient who is receiving oxygen via nasal cannula?
Answer: Oral
Oral temperature is contraindicated in patients receiving oxygen via nasal cannula because mouth breathing affects accuracy.
Normal SpO2 (oxygen saturation) for a healthy adult is typically:
Answer: 95–100%
A normal pulse oximetry reading for a healthy adult is 95–100%.
A patient's respiratory rate is 24 breaths per minute. How should the CNA document this finding?
Answer: Tachypnea
Tachypnea is defined as a respiratory rate greater than 20 breaths per minute in adults.
Which factor can cause a falsely LOW blood pressure reading?
Answer: Patient's arm positioned above heart level
When the arm is positioned above heart level, gravity reduces venous pressure, resulting in a falsely low reading.