B4-011 ECG Interpretation Flashcards by Felicia Jones

Q

things that can effect ECG reading

A

breast tissue
fat
body hair
sweat

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Q

frontal leads

A

V1-V6

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Q

6 steps to reading an ECG

A

rate
rhythm
axis
intervals
hypertrophy
ischemia

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Q

atrial depolarization

A

p wave

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Q

ventricular depolarization

A

QRS complex

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Q

ventricular repolarization

A

t wave

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Q

how to calculate the rate

A

R-R intervals x6

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Q

normal PR interval

A

120-200 ms

3-5 small boxes

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Q

normal QRS interval

A

80-120 ms

2-3 small boxes

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Q

normal QT interval

A

300-440 ms

1.5-2.5 large boxes

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Q

each small box is

A

40 ms

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Q

each large box is

A

200 ms

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Q

has a p wave before every QRS

A

sinus

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Q

ST depression, T wave inversion

A

MI

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