Complete the following ECG criteria for 2:1 AV block:
Rhythm ________________________________________
Rate ________________________________________
P waves ________________________________________
PR interval ________________________________________
QRS duration ________________________________________
Fill in the blanks with correct word
Rhythm Ventricular regular; atrial regular (Ps plot through on time).
Rate Atrial rate is twice the ventricular rate.
P waves Normal in size and shape; every other P wave is not followed by a QRS complex (i.e., more Ps than QRSs).
PR interval Constant.
QRS duration May be narrow or wide; complexes are absent after every other P wave.
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