Cardiac Codex

Stewart-Hamilton Equation

A Diagnostic Catheterization & Hemodynamics term on the RCIS exam blueprint, defined for cath lab and EP clinicians.

The mathematical formula underlying thermodilution cardiac output measurement, deriving CO as inversely proportional to the area under the time-temperature washout curve; its accuracy degrades with tricuspid regurgitation, intracardiac shunts, or concurrent rapid fluid administration.

Domain: Diagnostic Catheterization & Hemodynamics · Blueprint: RCIS exam guide

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