The client, who uses phenylephrine (Neo-Synephrine) nasal spray, asks the nurse how the medication works. The nurse s response would be based on which of the following physiological concepts? This...

The client, who uses phenylephrine (Neo-Synephrine) nasal spray, asks the nurse how the medication works. The nurse s response would be based on which of the following physiological concepts? This drug:

1. Activates alpha₁
adrenergic receptors in the peripheral nervous system.

2. Deactivates beta adrenergic receptors in the peripheral nervous system.

3. Activates alpha adrenergic receptors in the central nervous system.

4. Deactivates beta adrenergic receptors in the central nervous system.