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  • Chapter 3.7 - Pressure and Cardiac Output Measurement

  • from Sec 3 - Physics
  • Edited by Rebecca Leslie, Royal United Hospitals NHS Foundation Trust, Bath, Emily Johnson, Worcester Acute Hospitals NHS Trust, Worcester, Alex Goodwin, Royal United Hospitals NHS Foundation Trust, Bath, Samuel Nava, Severn Deanery, Bristol
  • Book:
    Dr Podcast Scripts for the Primary FRCA
    Published online:
    19 June 2025
    Print publication:
    03 July 2025, pp 383-405

  • Summary

    Understanding the principles and implications of pressure measurement is vital in anaesthesia. Here, in a similar structure to previous chapters we outline the basic physical principles of pressure, the variety of ways that it can be measured in clinical practice and the relationships with other physical principles. There is then focussed material on blood pressure measurement, through invasive and non-invasive techniques, on resonance and damping in pressure measurement systems, and on the measurement of intracranial pressure. The chapter finishes by discussing cardiac output measurement in clinical practice.