Which statement is accurate concerning drugs classified as adrenergic antagonists?

1. They are also known as anticholinergics.
2. Their actions will block the neurotransmitter acetylcholine.
3. Their actions are the opposite of those of sympathomimetics.
4. They will stimulate the sympathetic nervous system.


Correct Answer: 3
Rationale: Adrenergic antagonists inhibit the actions of the sympathetic nervous system. They are also known as sympatholytics. They block adrenergic receptors, not cholinergic receptors.

Nursing

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