Johnston Myocardial Infarction CIS Flashcards
in an anterior MI you get what kind of activity
sympathetic hyperactivity
what MI would give you parasympathetic hyperactivity
inferior MI
stemi signs
st elevation
new LBBB
NSTEMI vs unstable angina
both have st depression and T wave inversion
if cardiac enzymes are elevated then NSTEMI if not then unstable angina
what are other causes of ST segment elevation
pericarditis
LVH with J point elevation
normal variant early repol in african americans
ischemia and T wave
inverted t waves and tall peaked t waves
how big should the q wave be
less than 1/3 of the whole QRS
what would you see in an ECG in a posterior infarct
strong reciprical R wave in V1 and V2
usually downward deflections
when does troponin become detectable
1-4 hours
when does troponin peak
how long does it persist
10-24 hours
5-14 days
most deaths of MI are related to
Ventricular fibirlation
reperfusion strategy choices
primary percutaneous coronary intervention with angioplasty and stenting
cath lab within 90 minutes
time length goal of fibrinolysis with MI
30 minutes
what suggests failure of fibrinolysis
failure of ST elevation to resolve by 50-70% within 1-2 hours
primary pci is preferred for STEMI with symptoms of how long
less than 12 hours
