i just started my clinicals , we were asked to look into the Q wave and i was blank. and this explained pretty much everything i need to know , thanks a lot :) and keep up the good work :)
I was taught that when looking for pathological Q waves, you look in the inferior leads mainly. The reason being that, leads v1 & v2 (septal) should be negative always so it's not reliable. Also lead III will appear to have a path. q wave that really isn't pathological, so you must find it in 2 or more contiguous leads.
Excellent, quality video. She is calm, confident in her delivery and precise. 100% perfect video. I have learnt so much by watching this video. Great Teacher! Thank you making this video!
Hey nice vid with clear explanations and diagrams. I thought it would've been perfect if you explained the electrophysiology behind why scar tissue results in a Q wave as no one seems to address this
@@Bobcheloo the reason is pretty simple the scar tissue ( which essentially is a dead tissue ) is creating an electrical window so when the depolarisation vector of other side is propagating, it gets detected by the electrical lead adjacent to scar tissue, for it the depolarisation vector should appear moving away, so the adjacent lead detects it as a downward deflection which essentially forms the deep Q wave.
Hey, thank you for the explanation. I'm quite struggling to understand the graphic before. But I'm still wondering why the mi scar make the q wave more deeper. Can somebody explain it?
I really enjoyed your lesson I'm a disabled veteran and I have a slight miss trust in the Dr.'s at my VA I have been complaining of heart issues since the 1990's , approx 6 years ago I ended up having a triple by pass and the surgeon who did this told me that this might have probably been avoided if the VA would have taken better precautions early on so I was thrilled to see instructions on this, I was a medic in the service not war time so I really did not get the chance to learn then
Lower case letters are used to denote a wave form that does not reach at least 3 small squares (3 mm) in the + or - from the isoelectric line, thus the above initial complex appears to be correctly written as: q R S
I am studying for step now and your videos are helping me so much! I do wish you had the videos groups by subject so it was easier to find relevant ones. I don't know how you do that, but another channel I subscribe to has it set up like that.
I could never understated these q waves earlier. Thank you. It would be greatly appreciated if a normal ECG and q waves pattern was shown side by side. If we know normal Ecg by heart, then we world pick up abnormalities in an instant ima!
