82. A nurse is checking a client's third cranial nerve. How should physical assessment be performed?
82. A nurse is checking a client's third cranial nerve. How should physical assessment be performed?
. Sweep a piece of cotton briskly across the cornea.
. Ask the client to follow the examiner's finger with the eyes.
. Use a Snellen chart to check visual acuity.
. Check pupillary reaction using a penlight.
Test-Taking Tip
Review the correct assessment technique for each cranial nerve. Assessing CN III is part of routine neurological checks.
Content Area: Adult Health, Sensory; Integrated Process: Nursing Process, Implementation; Cognitive Level: Application; Client Need/Subneed: Health Promotion and Maintenance/Techniques of Physical Assessment
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Answer 1 is incorrect because this tests the corneal reflex (blink). Answer 2 is incorrect because this action tests extraocular movements (cranial nerve [CN] IV). Answer 3 is incorrect because this action tests the optic nerve (CN II). Answer 4 is correct because the normal response of the pupil to light is constriction, if CN III is normal.