This is from an AliveCor. I know it's nowhere near as good/reliable as a proper 8 lead EKG machine but you can see the waves pretty clearly. I just have no idea what I'm looking at. Is that 'drop' a PVC? I felt a weird sensation when that happened.
That's not a PVC. I don't know what it might be. Personally I think it's just an artifact, movement.
A PVC has a very bizarre waveform, and it's very large, very wide. It will also block NSR so there will be irregular spacing between the Q waves, which you do not have. Interestingly, you have U waves! (are you googling this yet?). It might be a U wave depression but I don't know. I think if it were a U wave depression it would be present on all of them.
Now, am I doc? no. I generally think I'm smarter than I actually am, so take it with a grain of salt. You should be talking to people who know what they're doing.
Oh jeeze, I just looked up "AliveCor". Never mind. I have no idea what that thing is reading or if it can even pick up the electrical waves of a heart through your fingers. For instance, U waves are very difficult to pick up through chest leads, there's no way this thing could read a U wave through your fingers.
All 3 look normal and the dips likely from movement. It is possible you felt a pac with the first one but not sure it would show up on this kind of monitor though you should see a pause at least if it was a pvc so doubtful if anything happened it was a pvc but more likely a pac. Either way one offs of pacs or pvcs are not a danger in a healthy heart. The graph with this app at least is fairly representative of a heart beat compared to the iphone ones that use the light though I would not rely on this app as a way to evaluate your heart. If you are concerned see a doctor to get checked out.
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