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Flashcards in MI Deck (37)
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1

ecg change immediately before the actual MI starts

t - wave inversion

2

egg change within hours after MI started and its age

acute - marked st elevation with upright t-wave

3

egg change hours later after MI started and age

acute - significant q and st elevation and upright t-wave

4

ecg change hours to a day or 2 days later and age

acute - significant q waves, and less st elevation with marked t inversion

5

egg change days to weeks later (can last up to a year) and age

age indeterminate with significant q and t wave inversion

6

egg changes weeks months or years after MI and age

significant q only

7

what egg change is seen when cardiac tissue is ischemic

newly inverted t waves

8

what ecg change is seen when acute mi begins and starts myocardial injury

marked st elevation and upright t-waves

9

what ecg change is seen when some of the injured myocardial tissue has died, and other tissue remains injured

significant q and st elevation with upright t waves

10

what ecg change is seen when infarction is almost complete, and some injury and ischemia persist at the infarct edges

significant q + less st elevation + marked t inversion

11

what ecg change is seen when infarction is complete

significant q waves and t wave inversion

12

what ecg change is seen with an "old" mi and what does it signify

significant q wave persists, signifying permanent tissue death

13

anterior infarct location is seen where

indicative changes in v1 to v4
reciprocal changes in II, III, avF

14

inferior infarct location is seen where

indicative changes in II, III, avF
reciprocal changes in I, avL, and V leads

15

lateral infarct is seen where

indicative changes in I, avL, v5-v6
may see reciprocal changes in II, III, aVF

16

posterior infarct is seen where

no indicative changes since no leads look directly at posterior wall

17

how is posterior infarct diagnosed

reciprocal changes in v1 and v2 (large R wave, upright T wave, and possibly st depression) seen as a mirror image of an anterior MI

18

extensive anterior aka extensive anterior-lateral

indicative changes in I, avL, V1-V6
reciprocal changes in II, III, aVF

19

anteroseptal

indicative changes in v1 and v2
usually no reciprocal changes

20

what coronary artery feeds the anterior segment

Left anterior descending (LAD)

21

what coronary artery feeds the inferior segment

right coronary artery (RCA)

22

what coronary artery feeds the lateral segment

circumflex

23

what coronary artery feeds the posterior segment

rca or circumflex

24

what coronary artery feeds the extensive anterior

lad or left main artery

25

what coronary artery feeds the anteroseptal

lad

26

I

lateral

27

II

inferior

28

III

inferior

29

aVR

ignore this lead when looking for MI

30

aVL

lateral

31

aVF

inferior

32

V1

anterior (posterior if mirror image)

33

V2

anterior (posterior if mirror image)

34

V3

anterior

35

V4

anterior

36

V5

lateral

37

V6

lateral