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EKG Notes for SHELF
| Question | Answer |
|---|---|
| Normal Values: P wave | <0.12 sec / <3 small boxes |
| Normal Values: PR | 0.12-0.20 sec / <1 big box |
| Normal Values: QRS | <0.12 sec / <3 small boxes |
| Normal Values: QT | <1/2 R-R interval, varies with HR |
| Normal Values: QTc | 0.33 - 0.47 sec |
| ST segment elevation in leads II, III & aVF | Inferior wall MI, RCA/PDA and LCA |
| ST segment elevation in leads V1-V4 | Anterior wall MI, LAD and the diagonal branches |
| ST segment elevation in leads I, aVL & V5-V6 | Lateral wall MI, LCA |
| ST segment depression in leads V1-V2 | Posterior wall acute infarct |