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The case for a hybrid sphygmomanometer
1Integrative and Behavioral Cardiovascular Health Program, Zena & Michael Wiener Cardiovascular Institute, Mount Sinai Medical Center, New York, NY 10029-6579, USA. Thomas.pickering@msnyuhealth.com
Abstract:
Mercury sphygomanometers are being banned in many countries, but what will replace them for the routine management of clinic blood pressure is unresolved. The accuracy of the two most widely used alternatives, aneroid and oscillometric devices, is questionable. A proposed alternative is a hybrid sphygomomanometer which is based on the mercury technique, but replaces the mercury column with an electronic transducer and display. It also has the potential to eliminate terminal digit preference.
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Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:
Assessment of blood pressure in brachial artery(two-step method)
Sites for measuring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Measurement of Blood Pressure