A client is prescribed an optic eye medication that will mimic the action of the sympathetic nervous system. The nurse expects that this medication will:
1. prepare the eye for near vision.
2. increase the ability of the eye to tear.
3. constrict the pupil.
4. dilate the pupil.
Correct Answer: 4
Rationale 1: Drugs that mimic the action of the sympathetic nervous system do not prepare the eye for near vision.
Rationale 2: Drugs that mimic the action of the sympathetic nervous system do not increase the eye's ability to tear.
Rationale 3: Drugs that mimic the action of the sympathetic nervous system do not constrict the pupil.
Rationale 4: Muscles that dilate the pupil are under the control of the sympathetic nervous system.
Global Rationale: Muscles that dilate the pupil are under the control of the sympathetic nervous system. Pupil constriction is a result of parasympathetic stimulation. Preparing the eye for near vision and increasing the ability to tear are not reasons these drugs are administered.
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