EKG

Question 1

anterior wall infartction

Answer 1

lead V2-V3 and V4?- artery LAD stent

Question 2

septal wall

Answer 2

lead V1-V2 - LAD

Question 3

inferior wall infarction

Answer 3

lead II, III, and AVF- RCA stent

Question 4

lateral

Answer 4

lead I, AVL, V5-V6- circumflex

Question 5

posterior infarction

Answer 5

lead V1- V3 or V2? - PDA

Question 6

7 steps

Answer 6

Rate, Rhythm, P, PR, QRS, P to QRS ration, QT

Question 7

Rate

Answer 7

1 small box 0.04 sec
5 small= l large box or 0.2 seconds
Method 1: # r-r intervals in 6 seconds (count the little ekg marks for 3 seconds)
method 2: # of large boxes between QRS divided into 300- so 300, 150, 100, 75, 60

Question 8

rhythm

Answer 8

variance between p-p and r-r, intervals less than 0.16 seconds

Question 9

p wave

Answer 9

shape, size, 0.6- 0.11 seconds, axis 0to 90

postion- absent or negative (started in AV junction)

Question 10

pr

Answer 10

0.12-0.20 seconds

Question 11

qrs

Answer 11

0.6-0.10 seconds

Question 12

QT

Answer 12

1/2 or < the distance of R to R

usual 0.42 or less

Question 13

ST

Answer 13

elevation- MI
deviation- ischemia
normal- no less than 1mm

Question 14

ischemia

Answer 14

inverted T waves with upright QRS
ST depression
LVH involved

Question 15

infarction

Answer 15

q wave changes

Question 16

t wave

Answer 16

asymmetric round adn upright in lead II
hyperkalemia- tall peaked
negative deflection- ischemia