Care Manager Certification Practice Exam

What action should the nurse take to check cranial nerve I?

1. Have the client identify specific smells.

2. Observe facial symmetry while the client smiles.

3. Check the client's visual acuity.

4. Whisper in one of the client's ears while occluding the other.

The correct answer is: Have the client identify specific smells.

To assess cranial nerve I, which is the olfactory nerve responsible for the sense of smell, the appropriate action is to have the client identify specific smells. This test evaluates the functioning of the olfactory nerve by requiring the individual to recognize and differentiate between various scents. It provides direct insight into the sensory capabilities associated with this cranial nerve. Other methods of assessment related to cranial nerves involve different nerves and sensory functions. Observing facial symmetry while the client smiles is an assessment for cranial nerve VII, which is the facial nerve responsible for facial expressions. Checking the client’s visual acuity pertains to cranial nerve II, the optic nerve, which handles vision. Whispering in one ear while occluding the other assesses cranial nerve VIII, the vestibulocochlear nerve, which is involved in hearing and balance. Therefore, to specifically evaluate cranial nerve I, identifying smells is the correct and relevant action.