The nurse explains that atropine (Atropair) increases heart rate in which manner?
1. Blocking the beta receptors of the parasympathetic nervous system.
2. Directly stimulating the sympathetic nervous system.
3. Potentiating the effects of acetylcholine on nicotinic receptors.
4. Blocking the effects of acetylcholine by occupying muscarinic receptors.
4
Rationale 1: Atropine occupies muscarinic receptors.
Rationale 2: Atropine blocks parasympathetic actions of acetylcholine.
Rationale 3: Atropine does not potentiate acetylcholine effects on nicotinic receptors.
Rationale 4: Atropine is a cholinergic-blocking agent that occupies muscarinic receptors.
Global Rationale: Atropine is a cholinergic-blocking agent that occupies muscarinic receptors. It is classified as an anticholinergic agent because it inhibits the effects of the parasympathetic nervous system, which induces the fight-or-flight responses of the sympathetic nervous system.
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