ACS Flashcards
Anterior MI
ST Elevations leads?
V1-V6
Left Anterior Descending
V7, V8, V9
ST Elevations
Posterior MI
Right Coronary Artery or
Left Circumflex
Septal MI
ST Elevations leads?
V1-V3
Left Anterior Descending
V1, V4R
ST Elevations
Right Ventricular MI
Right Coronary Artery
Inferior MI
ST Elevations leads?
II, III, aVF
Reciprocal ST-depressions: I, aVL
I, aVL, V5, V6
ST Elevations
Lateral MI
Left Circumflex
Lateral MI
ST Elevations leads?
I, aVL, V5, V6
Reciprocal ST-depressions: II, II, aVF
V1-V6
ST Elevations
Anterior MI- Left Anterior Descending
Posterior MI
ST Elevations leads?
V7, V8, V9
Reciprocal ST-depressions V1-V3
V1-V3
ST Elevations
Septal MI
Left Anterior Descending
CK-MB return to baseline?
48-72 hours
limb leads
(high lateral: I, aVL; inferior: II, III, aVF)
precordial leads
anterior: V1, V2, V3; lateral: V4, V5, V6
For a ST-elevation MI (STEMI) look for what on ECG?
ST-elevations of 1 mm or more in two contiguous limb leads
or
2 mm elevations in the precordial leads
MI rx?
Remember the following mantras:
IV O2 monitor!”
MONA greets all patients at the door
MONA stands for?
morphine, oxygen, nitroglycerin and aspirin. Beta-blockers should be used to control the heart rate and blood pressure.
Left bundle branch block (LBBB) ECG findings
QRS duration > 1 20 msec
no R wave in V1; wide, tall R waves in I, V5, and V6
Right bundle branch block (RBBB) ECG findings
QRS duration > 1 20 msec; RSR’ complex (“rabbit ears”); wide R wave in V1
wide S wave in I, V5, and V6
TIMI Risk Score for UA/NSTEMI factors
65 or older? 3+ CAD risk factors? Known CAD? Aspirin use in past week? Severe angina? ST segment changes? Positive cardiac markers?
1 point each
5+ = high risk
