A 39-year-old member asked:
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what is blood pressure a measure of?

2 doctor answers
Dr. Louis Grenzer
55 years experience Cardiology
See below: It is the pressure within your arteries when the heart contracts (systolic) and when it relaxes (diastolic).
Answered on Mar 23, 2014
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Dr. Calvin Weisberger
51 years experience Cardiology
Blood pressure: Blood pressure is produced by the interrelationships of the vascular resistance, the blood volume and the mechanical force of contraction of the heart pumping blood into the vascular tree. Changes in any of these parameters can change the blood pressure, so BP measures multiple components.
Answered on Jun 10, 2014

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Dr. Kenneth Cheng
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Sphygmomanometer : Blood pressure is measured with a sphygmomanometer measuring pressure in millimeters of mercury.
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A 34-year-old member asked:
Dr. Christopher White
43 years experience Cardiology
MmHg: The height of a column of mercury measured in millimeters. The instrument used is a sphygmomanometer commonly called a blood pressure cuff.

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