RR Interval Single Measurement

**Semantic type:** Quantitative Concept

**Definition:** An electrocardiographic measurement of the interval between two consecutive R waves. If R waves are not present, this measurement may utilize the interval between the most easily identified components of the QRS complex within two consecutive beats. (CDISC)

**Synonyms:** - RR Interval, Single Measurement - RR Interval, Single Measurement - RR Interval, Single Measurement - RRSM - RRSM