That's probably so-called second degree heart block type 1. That's completely normal during sleep (if that is what it is). If so, the answer is "yes" to both your questions, I guess :)
I was told to day that I had a non conductive sinus p wave that only happened twice in a 48 hr tabe. They also occurred in my sleep. Is this normal or some sort of heart block? Thankyou.
Thankyou for your answer.
P wave = atrial contraction (the upper chambers "beat"). There is a P wave in every heartbeat except ventricular rhythms (PVCs).
A nonconducted P wave can be 2 things:
A nonconducted ectopic P wave is an early PAC (ectopic beat) that isn't conducted to the heart chambers. This is completely normal.
A nonconducted sinus P wave (normal P wave) does imply a so-called AV block. This is also to a certain degree completely normal during sleep, but if it happens when you are awake, it will be sensed as a skipped beat. May be normal but should be further investigated if it happens a lot.
Sorry, it's impossible for me to say which of the two conditions they found in your Holter test, ask your physician.