Mnemonic

Cardiac Output Determinants - PRSH

A mnemonic for the four main determinants of cardiac output.

Expansion

Preload, Rate, Stroke volume, Heart contractility

Expansion

  • P - Preload (venous return / end-diastolic volume)
  • R - Rate (heart rate)
  • S - Stroke volume
  • H - Heart contractility (inotropy)