Single Beat Q Wave Amplitude

**Semantic type:** Quantitative Concept

**Definition:** An electrocardiographic measurement of the mean amplitude (usually measured in mV) of the Q wave measured from the isoelectric baseline to the peak of the Q 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:** - Q Wave Amplitude, Single Beat - Q Wave Amplitude, Single Beat - QWASB