Single Beat P Wave Amplitude

**Semantic type:** Quantitative Concept

**Definition:** An electrocardiographic measurement of the mean amplitude (usually measured in mV) of the P wave measured from the isoelectric baseline to the peak of the P wave of a single beat utilizing one or more leads. Based on the recording gain, this measurement may also be reported in mm. (CDISC)

**Synonyms:** - P Wave Amplitude, Single Beat - P Wave Amplitude, Single Beat - PWHTSB