Question

What is the frequency, the PR interval, QRS interval?

Of myocardial infarction, sinus tachycardia, atrial fibrillation, Idioventricular Rhytm, Premature Ventricular Complex, Ventricular tachycardia, torsades de pointes, ventricular fibrillation, ventricular tachycardia and type 1 second degree AV block.

Answer 1

	Frequency	PR Interval	QRS interval
Myocardial Infarction	60Hz	PR segment elevation or depression	prominent Q wave
Sinus Tachycardia	HR>100b/mt	normal	normal P wave preceeding every QRS complex
Atrial fibrillation	300-600waves per minute	Absence of P waves	typically irregular QRS complexes
Idioventricular rhythm	HR<50	Absence of P waves	prolonged QRS
Premature ventricular complex	occur >30times per hour	NIL	Wide QRS
Ventricular tachycardia	higher than 100beats /min	AV dissociation	wide QRS
Torsades de pointes	HR>600	No P wave.Prolonged QT	Irregular QRS
Ventricular fibrillation	HR>300	no P wave,no PR interval	Irregular QRS
Type1 second degree AV block	bradycardia	P wave is regular, PR interval is longer	QRS is dropped