The client in the photograph is having a cranial nerve assessment. Which cranial nerve is the nurse assessing?
1. Olfactory nerve (cranial nerve I).
2. Optic nerve (cranial nerve II).
3. Oculomotor nerve (cranial nerve III).
4. Trochlear nerve (cranial nerve IV).
Correct Answer: 1
The sense of smell assessment is being demonstrated in the photograph. The olfactory nerve (cranial nerve I), which is responsible for the sense of smell, is being evaluated. Cranial nerve II is the optic nerve. Assessment of cranial nerve II (optic nerve) would involve assessment of vision. Cranial nerve III (oculomotor nerve) involves the assessment of papillary reactivity and the extrinsic muscles of the eyes. Cranial nerve IV (trochlear nerve) assessment would require assessing the movements of the eyes. This would include instructing the client to follow an object such as the examiner's finger with the eyes.
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