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Learn it well Demo Review Quiz 1
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1. Choose the one best answer:
a. The QRS on the EKG represents electrical repolarization.
b. The Action Potential was described before the EKG was being used clinically.
c. The unit of electrical potential was named after Volta.
d. a and c
e. b and c
2. Which two waves on the EKG are always negative or downward?
a. Q and S
b. P
c. T
d. R
e. b and c
3. As a result of depolarization:
a. the charge of a myocardial cell becomes more negative
b. the charge of a myocardial cell becomes less negative
c. the QRS is inscribed on the EKG
d. b and c
e. none of the above
4. The conduction pause that permits the atria to contract and empty their contents into the ventricles occurs during:
a. the QRS
b. the PR interval
c. the ST segment
d. the T wave
e. none of the above
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