Complete the following ECG criteria for atrial flutter:
Rhythm __________________________
Rate __________________________
P waves __________________________
PR interval __________________________
QRS duration __________________________
Fill in the blanks with correct word
Rhythm Atrial regular, ventricular regular or irregular depending on AV conduction or blockade.
Rate Atrial rate 250 to 450 beats/min, typically 300 beats/min; ventricular rate variable, determined by AV blockade; the ventricular rate will usually not exceed 180 beats/min because of the intrinsic conduction rate of the AV junction.
P waves No identifiable P waves; saw-toothed "flutter" waves are present.
PR interval Not measurable.
QRS duration 0.11 seconds or less, but may be widened if flutter waves are buried in the QRS complex or if abnormally conducted.
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