Cardiac Codex

Right Atrial Pressure (RAP)

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

Normal mean pressure ranges from 0 to 6 mmHg. The RA waveform is complex, reflecting mechanical events: the a-wave corresponds to active atrial contraction; the c-wave reflects the bulging of the tricuspid valve back into the atrium during isovolumetric ventricular contraction; and the v-wave represents passive atrial filling against a closed tricuspid valve during late systole.

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

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