12 Lead Placement Standard Extended Right

**Semantic type:** Classification

**Definition:** An electrocardiogram (ECG) lead placement whereby the rightward oriented V leads progress from V1R, placed instead of the standard V2, to V6R. The V3 lead in the standard placement is replaced by V4R.

**Synonyms:** - 12-LEAD EXTENDED RIGHT - 12-lead extended to the right by V5R, V4R, V3R - Standard 12-lead extended to the right by V5R, V4R, V3R