Blood Pressure in Humans

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Blood Pressure in Humans


Students may use PowerLab systems to make non-invasive blood pressure measurements in human subjects. The PowerLab data acquisition system may be used to introduce students to several non-invasive methods for determining blood pressure. A complete experiment (where blood pressure is estimated with a cuff, sphygmomanometer, stethoscope for auscultation, and finger pulse transducer) is available from the Experiments section. ADInstruments provide a Sphygmomanometer for recording systolic blood pressure in human subjects that is ideal for demonstrations. The unit is coupled to a BP transducer that converts the applied pressure to an electronic signal. The transducer is suitable for connection to a PowerLab using direct Pod Ports, the Bridge Pod or Bridge Amps. Simple experiments involve observing peripheral pulse changes at different cuff pressures using the Piezo Electric Pulse Transducer (or IR Plethysmograph Finger Clip). Further experiments can compare the results of auscultated pressures with Korotkoff sounds recorded using an Electronic Stethoscope or Cardio Microphone. The stethoscope and microphone connect directly to the PowerLab via its Pod Ports.

Students may use PowerLab systems to make non-invasiveblood pressure measurements in human subjects.