Class III antiarrhythmics interfere with:
A) magnesium outflow
B) potassium outflow
C) calcium outflow
D) sodium outflow
B) potassium outflow
Class III antiarrhythmics interfere with potassium outflow. This alters the repolarization phase and prolongs the potential contraction duration of the Purkinje fibers as well as the muscle fibers of the ventricles.
Health Professions
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Which of the following patient instructions for using a dry powder inhaler (DPI) is correct?
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Clinical symptoms of hyponatremia would include which of the following? 1. Headache 2. Bradycardia 3. Hypotension 4. Weakness
a. 3 only b. 2 and 4 only c. 1, 3, and 4 only d. 1, 2, 3, and 4
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