answers already pass 2026/2027
Normal PR interval time - correct answer 0.12-0.2 seconds
Normal QRS Complex time - correct answer Less than 0.1-0.12
Normal QT interval time - correct answer 0.44
PR interval - correct answer Represents the measured time of an electrical impulse traveling from the
atria to the ventricles
P wave - correct answer represents atrial depolarization
QRS complex - correct answer represents ventricular depolarization
ST segment - correct answer Represents early ventricular repolarization
T wave - correct answer represents ventricular repolarization
QT interval - correct answer Represents ventricular depolarization and repolarization
One small box - correct answer 0.04 seconds and 1 mm
One large box - correct answer 0.2 seconds and 5 mm