Which of the following is the main component of a hemodynamic monitoring system?

a. Plethysmograph
b. Pneumotachometer
c. Sphygmomanometer
d. Strain gauge transducer

ANS: D
Hemodynamic monitoring systems consist of equipment that detects small physiological signal (vascular pressure) changes and converts them to electrical impulses, which can then be amplified and recorded on a cathode ray tube (CRT) monitor or strip chart recorder. A strain gauge trans-ducer is utilized to measure vascular pressure.