Ocular Effects of the Sympathetic Nervous System

Assessment

What is the major difference in the activity between cocaine and Iopidine?

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Iopidine indirectly causes pupil dilation; cocaine directly causes pupil dilation

Iopidine causes the release of NE from the nerve; cocaine blocks the reuptake of NE by the nerve

Cocaine indirectly causes pupil dilation; Iopidine directly causes pupil dilation

Cocaine causes the release of NE from the nerve; Iopidine blocks the reuptake of NE by the nerve

True or false: Hydroxyamphetamine should be used to determine whether Horner’s syndrome is present.

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True

False

If you suspect Horner’s syndrome, what is the appropriate pharmacological testing to perform?

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Cocaine or apraclonidine first; hydroxyamphetamine second

Cocaine first; apraclonidine second; hydroxyamphetamine third

Apraclonidine first; cocaine or hydroxyamphetamine second

Complete the sentence: Horner’s syndrome will exhibit ____________.

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Poor dilation on apraclonidine testing

Poor dilation on cocaine testing

Poor dilation in hydroxyamphetamine testing

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