First of all, I want to thank you IMMENSELY for the amazing work you are doing, even going and updating all these videos! It's truly incredible, you are awe-some (and then some!). Did want to add that high sensitivity troponin has pretty much replaced the other enzymes (as far as I know/have seen it done). Also, your patient at 9:19 seems to be having a posterior STEMI in addition to the inferior one (they occur frequently together!)
Cardiac troponin I rises after 4 hours (peaks at 24 hr) and is for 7-10 days; more specific than other protein markers. CK-MB increases after 6-12 hours (peaks at 16-24 hr) and is predominantly found in myocardium but can also be released from skeletal muscle. Useful in diagnosing reinfarction following acute MI because levels return to normal after 48 hours.
