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How to Take a Blood Pressure by Wrist

author image Kyrana Jones
Kyrana Jones draws from her experience in newspaper publishing, medicine, retail management, marketing, pool and spa maintenance, insurance and financial industries to provide written content for newspapers and web resources. She holds an Associate of Arts in business and is the editor-in-chief of The Upshur Connection.
How to Take a Blood Pressure by Wrist
A man is checking his wrist monitor's results on a phone. Photo Credit: filrom/iStock/Getty Images

Blood pressure levels are one measurement used in conjunction with other signs and symptoms to evaluate a patient. In some situations, such as a motor vehicle accident or if an injury site is close to active machinery, noise levels may be high enough to interfere with measuring blood pressure with a stethoscope. An alternative method is to measure blood pressure by touch or palpation. This method is not as accurate as auscultation (using a stethoscope to listen for the pulse sounds), but can be helpful in emergencies.

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Step 1

Wrap the blood pressure cuff securely (but not too tightly) around the upper arm of the patient. Position the cuff so that it is approximately 1 inch above the elbow and center the bladder (the part that fills with air) over the brachial artery.

Step 2

Locate the radial pulse on the arm bearing the blood pressure cuff. If possible, turn the patient’s hand so that the palm is facing up. Place three fingers in the middle of the patient’s wrist (do not use your thumb). Slide your fingers toward the thumb-side of the wrist and apply moderate pressure until you can feel the pulse beats.

Step 3

Confirm that the valve on the pressure gauge is closed and begin pumping the bulb to inflate the cuff. Continue pumping until you can no longer feel a pulse, note where the needle on the gauge is located and inflate the cuff an additional 20 mmHg (millimeter of mercury is the unit of measure on the blood pressure gauge).

Step 4

Slowly deflate the cuff by opening the valve and releasing air from the bladder. Notice the reading on the gauge when you are once again able to feel the radial pulse. This is the patient’s systolic pressure.

Step 5

Record the reading, the time of the reading and remove the blood pressure cuff.

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