DYSRHYTHMIAS COURSE PENN MEDICINE EXAM QUESTIONS & DETAILED COMPLETE SOLUTIONS

DYSRHYTHMIAS COURSE PENN MEDICINE EXAM
QUESTIONS & DETAILED COMPLETE
SOLUTIONS
1. SA node rate 60-100 bpm

body's natural pacemaker




2. AV node rate 40-60 bpm

takes over if SA isnt firing... responsible for junctional




rhythms

3. Purkinje rate 20-40 bpm




4. p wave atrial depolarization




5. PR interval 0.12-0.20 seconds

beginning of P wave to start of QRS
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, DYSRHYTHMIAS COURSE PENN MEDICINE EXAM
QUESTIONS & DETAILED COMPLETE
SOLUTIONS




6. QRS complex 0.04-0.12

ventricular depolarization




7. QT interval 0.36-0.40

ventricles contract and begin to relax




8. T wave ventricular repolarization




9. ST segment -extends from end of QRS to end of T wave
-time during which ventricles are contracting and
emptying
-ST should be at isoelectric line



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