EKG

Question 1

anterior leads

Answer 1

V2, V3, V4

Question 2

inferior leads

Answer 2

II, III and avF

Question 3

lateral leads

Answer 3

aVL, I, V4, V5, V6

Question 4

if you are worried about septum, what leads do you look at?

Answer 4

V1, V2

Question 5

how long is normal PR interval?

Answer 5

.12-.20 seconds

Question 6

how long is a normal QRS interval?

Answer 6

.06- .10 seconds

Question 7

how long is a normal QT interval?

Answer 7

.36-.44 seconds

Question 8

how many seconds is 1 small box?

Answer 8

.04 seconds

Question 9

how do you calculate rate

Answer 9

1500/# of small boxes

Question 10

what two leads is it easiest to see P waves in?

Answer 10

V1 and lead II

Question 11

what 2 leads should you look at for axis?

Answer 11

I and aVF

Question 12

what do you see in left axis deviation?

Answer 12

up in I and down in aVF

Question 13

what do you seen in right axis deviation

Answer 13

down in I and up in aVF

Question 14

if you see a “little notch” in the middle of a P wave, what are you thinking?

Answer 14

atrial flutter

Question 15

what is the following describing

“more organized, saw tooth pattern, high risk of stroke”

Answer 15

atrial flutter

Question 16

what is the following describing

“ completely disorganized, tachycardia without identifiable P waves”

Answer 16

atrial fibrillation

Question 17

what is something you could see in hyperkalemia?

Answer 17

hyperacute T waves in every lead

Question 18

what are you thinking if you saw focal hyperacute T waves in the anterior leads?

Answer 18

endothelium or vascular defect