Cardiac Codex

Z-Point

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

The precise point on the left ventricular pressure tracing, corresponding to the onset of the QRS complex, at which true LVEDP is measured — marking the end of electrical diastole just before mechanical systole begins.

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

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