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CCMA M9: EKG&Cardio
CCMA Module 9: EKG Lead Placement
| Universal lead wire placement: White | Right arm |
| Universal lead wire placement: Black | Left arm |
| Universal lead wire placement: Red | Left leg |
| Universal lead wire placement: Green | Right leg |
| Precordial lead colors: V1 | Red |
| Precordial lead colors: V2 | Yellow |
| Precordial lead colors: V3 | Green |
| Precordial lead colors: V4 | Blue |
| Precordial lead colors: V5 | Orange |
| Precordial lead colors: V6 | Purple |
| Lead placement: V1 | Right of the sternum, 4th intercostal space |
| Lead placement: V2 | Left of the sternum, 4th intercostal space |
| Lead placement: V3 | Left side of the chest, between V2 and V4 |
| Lead placement: V4 | Midclavicular line, 5th intercostal space * This lead is placed before V3. |
| Lead placement: V5 | Left anterior axillary line, level with V4 |
| Lead placement: V6 | Midaxillary line, level with V5 |
| Limb leads should be placed... | Symmetrically |
| Ensuring EKG function: | - Standardization mark is 10 mm high - R wave on lead I should have positive deflection, if it is negative limb leads need to be rettached - Observe and check for artifacts (somatic tremor, etc) |
| Instructing patients: | 1. Prepare patient & apply electrodes 2. Testing: instruct patient to relax, lie still, and breathe normally - Patients cannot talk while the EKG is being recorded |