ECG 2 Flashcards

1
Q

how to calcualte rate on ecg?

A

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

count “300, 150, 100, 75, 50”

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2
Q

to determine AXis

ask if Is QRS positive or negativ in leads____

A

I and AVF

“3 down, 1 over”

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3
Q

green?

A

P wave

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4
Q

red?

A

R wave

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5
Q

purple?

A

S wave

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6
Q

blue wave?

A

T wave

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7
Q

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

A

Left axis deviation

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8
Q

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

A

Right axis deviation

“right is complete opposite, red”

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9
Q

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

A

Right axis deviation

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10
Q

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

A

normal axis “two thumbs up sign”

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11
Q
A

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

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12
Q
A

pathologic Q wave

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

if acute, there would be a stemi too

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