direct measurement of blood pressure


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direct measurement of blood pressure

Etymology: L, diregere, to direct, mensura, to measure; ME, blod + L, premere, to press
measurement of blood pressure by means of a catheter inserted into an artery. The catheter is connected to a pressure transducer.

direct measurement of blood pressure

Determination of the blood pressure within the lumen of an artery or within a chamber of the heart with a catheter introduced into the organ and attached to a pressure-monitoring transducer. It is done by placing a sterile needle or small catheter inside an artery and having the blood pressure transmitted through that system to a suitable recorder. As the blood pressure fluctuates, the changes are recorded graphically.
See also: blood pressure
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