20. Myocardial Infarction

Question 1

What qualifies as STEMI in men?

What about for women?

Answer 1

2mm ST elevation in one lead with no LVH

or

1 mm ST elevation in multiple leads

Same for women, except even 1.5 mm elevation counts as a STEMI

Question 2

What is indicated by an elongated Q wave?

Answer 2

Cardiac tissue death (necrosis)

Question 3

What may lead you to expect a posterior MI?

Answer 3

Prominent R wave in V1

ST depression in V2 and V3

Question 4

Besides troponin, what labs may point to an MI?

Answer 4

C Reactive Protein elevation

WBC elevation

Brain Natriurietic Peptide (BNP) elevation