Arrhythmia question- 2 degree AV block?

[michaelrack]

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Is it possible to have a normal p wave and a normal t wave but no qrs complex??

I saw this a happen couple of times (dropped qrs?) during one patient's sleep study-we monitor a single EKG lead during polysomnography.

Is this possible (absent qrs but normal t wave) or is it likely to just be artifact?

thanks

 

[Myostatin]

Not possible to have a t-wave without a QRS - t-wave is produced by ventricular repolarization, which you can't have without ventricular depolarization (i.e. qrs complex) - you must be seeing artifact.

 

[michaelrack]

Not possible to have a t-wave without a QRS - t-wave is produced by ventricular repolarization, which you can't have without ventricular depolarization (i.e. qrs complex) - you must be seeing artifact.

thanks for confirming that, Myostatin.