ECG 2

Question 1

how to calcualte rate on ecg?

Answer 1

1) pick a referene point
2) count how many boxes between the start line and an indicatal point

count “300, 150, 100, 75, 50”

Question 2

to determine AXis

ask if Is QRS positive or negativ in leads____

Answer 2

I and AVF

“3 down, 1 over”

Question 3

green?

Answer 3

P wave

Question 4

red?

Answer 4

R wave

Question 5

purple?

Answer 5

S wave

Question 6

blue wave?

Answer 6

T wave

Question 7

QRS in lead I is POSITIVE, QRS lead avF is NEGATIVE

Answer 7

Left axis deviation

Question 8

QRS in lead I is NEGATIVE, QRS lead avF is NEGATIVE

Answer 8

Right axis deviation

“right is complete opposite, red”

Question 9

QRS in lead I is NEGATIVE, QRS lead avF is POSITIVE

Answer 9

Right axis deviation

Question 10

QRS in lead I is POSITIVE, QRS lead avF is POSITIVE

Answer 10

normal axis “two thumbs up sign”

Question 11

Answer 11

Signifies an acute process, ST segment returns to
baseline with time

Question 12

Answer 12

pathologic Q wave

Old infarcts: significant Q waves (like infarct damage) remain
for a lifetime

if acute, there would be a stemi too