step up to med cardio (p 8 - p 68)

Question 1

most common causes of MI?

Answer 1

acute coronary thrombosis: atheromatous plaque ruptures into the vessel lumen

Question 2

what is the mortality rate for MI?

Answer 2

30% (half of the death is pre-hospital)

Question 3

3 most common hx of pts with MI

Answer 3

1. angina
2. risk factors for CAD
3. hx of arrhythmia

Question 4

MI symptoms can be asymptomatic up to

Answer 4

1/3 of pts

Question 5

sudden cardiac death from MI is mainly due to

Answer 5

v Fib

Question 6

what is the EKG evidence for necrosis?

Answer 6

Q wave

Question 7

EKG changes for anterior MI?

Answer 7

ST elevation in V1-V4

Q waves in V1-V4

Question 8

EKG changes for posterior MI?

Answer 8

large R wave in V1-V2
ST depression in V1-V2
T wave in V1-V2

Question 9

EKG changes for lateral MI?

Answer 9

Q waves in I, avL

Question 10

EKG changes for inferior MI?

Answer 10

Q waves in II, III, aVF

Question 11

3 drugs that reduces mortality in MI

Answer 11

b blockers, ACE inhibitors, aspirin

Question 12

revascularization has the highest benefit when?

Answer 12

when performed early

Question 13

heparin is used for 3 types of cardio paths

Answer 13

unstable angina, NSTEMI and STEMI (heparin is NOT used in stable angina)