SA node (sinoatrial node) - correct answer 60-100 bpm
AV node (atrioventricular node) - correct answer 40-60 bpm
Purkinje fibers - correct answer 20-40 bpm
P Wave - correct answer - atrial depolarization
- 0.10 sec
PR interval - correct answer 0.12-0.20 seconds
QRS complex - correct answer 0.04-0.10 seconds
ST segment - correct answer 0.08 seconds
T wave - correct answer <5mm
Sinus Bradycardia - correct answer <60 bpm
Treat only if symptomatic
- atropine
-avoid dig, morphine, beta-blockers
First Degree AV Block - correct answer Prolonged > 0.20 seconds, remains
constant with QRS complex measuring normal
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