Which of the following statements is accurate regarding exogenous ...

[vicky]

Which of the following statements is accurate regarding exogenous acetylcholine?
 
  1. Acetylcholine has almost no therapeutic effects because it is rapidly destroyed once given.
  2. Acetylcholine is broken down rapidly within the body, preventing it from producing adverse effects.
  3. Acetylcholine will cause the heart rate to increase and blood pressure to drop.
  4. When given in small amounts, acetylcholine will produce profound parasympathetic effects.

Question 2

The nurse knows that atropine (Atropair) increases heart rate by
 
  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.

[JCABRERA33]

Answer to Question 1

Correct Answer: 1
Rationale: Exogenous acetylcholine is not generally administered, because it is rapidly destroyed by the body. It does produce many adverse effects. Acetylcholine can lower blood pressure, but it also lowers heart rate.

Answer to Question 2

Correct Answer: 4
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.

[vicky]

Thank you!

[JCABRERA33]

Always glad to help...