1. The neurotransmitter for the parasympathetic nervous system is acetylcholine. Release of acetylcholine: I. Slows the heart rate II. Increases the heart rate III. Slows atrioventricular conduction...

1. The neurotransmitter for the parasympathetic nervous system is acetylcholine. Release of acetylcholine:

I. Slows the heart rate

II. Increases the heart rate

III. Slows atrioventricular conduction

IV. Increases atrioventricular conduction

a. 1 and 3

b. 2 and 3

c. 3 and 4

d. 1 and 4

2. Hyperkalemia refers to an increased level of potassium in the blood and can result in decreased automaticity and conduction.

a. True b. False