How many Big boxes = ? seconds

Junctional Rhythm

Supraventricular

Deep Q wave

Flat T wave

If Flat T wave due to Hypokalemia...

If Flat T wave due to Acute ischemic attack...

V1 is (-) or (+)
- why

V2 is (-) or (+)
- why

aVR is (-) or (+)
- why

RVH (Right Ventricular Hypertrophy)

V1 and V2
- called what kind of leads
- placed where

V3 and V4
- called what kind of leads
- placed where

V5 and V6
- called what kind of leads
- placed where

II, III, aVF
- called what kind of leads