Postoperative nursing monitoring after posterior fossa tumor surgery should focus on which function?

• A. Wound drainage
• B. Cranial nerve and brainstem function
• C. Immune status
• D. Blood sugar levels

Answer: (B)

Monitoring after posterior fossa tumor surgery focuses on cranial nerve and brainstem function because this area contains vital brainstem centers and many cranial nerves that control breathing, swallowing, voice, facial movement, and eye movements. Subtle changes can indicate swelling, edema, or hemorrhage that could rapidly threaten the patient’s airway, circulation, or level of consciousness. Early detection of new or worsening cranial nerve deficits—such as trouble swallowing or gag reflex, hoarseness, facial weakness, diplopia, or altered pupil responses—signals a problem needing urgent assessment and intervention. While wound drainage, immune status, and blood sugar are important aspects of general postoperative care, they do not specifically reflect the immediate risk to brainstem function after this type of surgery.