The nurse is taking the blood pressure of a patient diagnosed with primary hypertension. To ensure accurate measurement, the nurse would avoid which of the following:
A) Measuring the BP after the patient has been seated quietly for 5 minutes
B) Taking the BP 10 minutes after nicotine or coffee ingestion
C) Using a cuff with a bladder that encircles at least 80% of the limb
D) Using a bare forearm supported at heart level on a firm surface
Ans: B
Feedback: Blood pressures should be taken with the patient seated with arm bare, supported, and at heart level. The patient should not have smoked tobacco or taken caffeine for 30 minutes preceding the measurement. The patient should rest quietly for 5 minutes before the reading is taken. The cuff bladder should encircle at least 80% of the limb being measured and width of at least 40% of limb circumference. Using a cuff that is too large results in a lower BP; a cuff that is too small will give a higher BP measurement.
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