A patient reports sudden weakness on one side of their body. The nurse should:

Correct Answer: A

Rationale: Sudden weakness on one side of the body may indicate a neurological issue, such as a stroke. A focused neurologic assessment is essential. Oxygen saturation, skin color, and blood glucose levels are secondary considerations.

Correct Answer: A

Rationale: Motor function testing involves assessing symmetry and strength of muscle movements. Skin color, blood glucose levels, and heart rate are unrelated to motor function.

Correct Answer: C

Rationale: The trochlear nerve (IV) is the smallest cranial nerve. It innervates the superior oblique muscle, which helps control eye movement.

Correct Answer: C

Rationale: The L5 dermatome supplies the great toe and the dorsum of the foot. This is important in diagnosing lumbar nerve root compression.

Correct Answer: B

Rationale: The cervical sympathetic trunk runs lateral to the vertebral artery and posterior to the carotid sheath. It contains ganglia that provide sympathetic innervation to the head and neck.