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mayo ecg essentials exam questions and answers
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mayo ecg essentials exam questions and answers
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mayo ecg essentials exam questionsand answers
delays impulse from atria before it moves to the ventricles - Answers -av node
right sternal border, 4th intercostal space L1 - Answers -lead 1 goes where
1st degree heart block - Answers -long PR
inverted p wave - Answers -junctional
junctional
accelerated
junctional - Answers -40-60
60-100
100-159
Ventricular - Answers -20-40
Junctional - Answers -40-60
SA - Answers -60-100
P wave comes before it should which makes the preceding T wave look abnormally
large - Answers -PAC
QRS is not preceded by a P wave, but the width of the QRS is unaffected - Answers -
PJC
They do not follow a P wave and are very wide complexes compared to the sinus beat
QRSs. - Answers -PVC
1st degree AV block - Answers -long pr interval
2nd degree AV block type 1 - Answers -pr progressively lengthens, longer, longer, drop
2nd degree AV block type 2 - Answers -p regular, irregularly dropped qrs
3rd degree heart block - Answers -no obvious correlation between p and qrs,
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