A nurse is caring for a patient who underwent surgical removal of an acoustic neuroma. Which nursing intervention should be the highest priority during the immediate postoperative period?
1Monitor for signs of cerebrospinal fluid leak from the surgical site
2Assess neurological status including cranial nerve function every 15 minutes✓ 정답
3Position the patient in semi-Fowler's position to reduce intracranial pressure
4Administer prescribed antiemetics to prevent nausea and vomiting
해설
Following acoustic neuroma surgery, frequent neurological assessments are the highest priority to detect early signs of complications. Other interventions are important but secondary to neurological monitoring.
Core Nursing ExplanationKey Concept Analysis: This question assesses the priority nursing intervention for a patient in the immediate postoperative period after Acoustic neuroma (vestibular schwannoma) removal. This is a delicate neurosurgical procedure near the Cerebellopontine angle, involving critical structures like the Cranial nerves (CN) VII (facial) and VIII (vestibulocochlear), and the brainstem. The core principle is Postoperative neurosurgical monitoring, where the highest priority is always the early detection of life-threatening complications such as Increased intracranial pressure (ICP), Hematoma formation, or brainstem compression.
Answer Rationale: Key Point! The correct answer is ② Assess neurological status including cranial nerve function every 15 minutes. In the immediate postoperative phase (first 24-48 hours), frequent, systematic neurological assessments are the highest nursing priority. This includes monitoring level of consciousness (LOC), pupillary response, motor strength, sensation, and specific cranial nerve function (especially CN V, VII, VIII). Changes in these parameters are the earliest and most sensitive indicators of complications like edema, bleeding, or increased ICP. A frequency of "every 15 minutes" is standard in many protocols for the initial, most critical period.
Distractor Analysis:
① Monitor for signs of cerebrospinal fluid leak from the surgical site: While an important intervention, it is not the highest priority in the immediate postoperative period. A CSF leak indicates a dural tear and risk of meningitis, but it is not typically an immediate threat to life like rapidly rising ICP or brainstem herniation. Monitoring for CSF leak (clear drainage from nose/ear or incision, positive halo sign) is a crucial but secondary assessment.
③ Position the patient in semi-Fowler's position to reduce intracranial pressure: This is a correct and important intervention to promote venous drainage from the brain and reduce ICP. However, it is an implementation action. The priority is first to assess the patient's status to determine if such an intervention is needed and to establish a baseline. You cannot properly implement care without first knowing the patient's condition.
④ Administer prescribed antiemetics to prevent nausea and vomiting: Preventing nausea and vomiting is important because retching can dramatically increase ICP. However, this is also an intervention. The priority nursing action is assessment. Furthermore, administering medication requires an assessment of the patient's need and condition first.
Related Concepts: This question tests the fundamental nursing principle of Assessment before intervention and the specific application of the ABCs (Airway, Breathing, Circulation) with a neurological focus (often remembered as "Airway, Breathing, Circulation, Disability/Neurological"). In neurosurgery, "Disability" (neurological status) becomes a primary survey component.
Concept Summary
Concept
Description
Postoperative Relevance
Acoustic Neuroma
Benign tumor of CN VIII. Surgery risks damage to CN VII (facial paralysis) and CN V (corneal reflex loss).
Assessing for Sudden Neurological Change (indicates hematoma)
Providing patient/family education
Anatomy, Physiology & Pharmacology Points
Anatomy: The Cerebellopontine angle (CPA) is where the cerebellum, pons, and medulla meet. CN VII and VIII run through here. Surgery in this area risks injury to these nerves and the brainstem, which controls vital functions (respiratory and cardiac centers).
Physiology: The Monro-Kellie doctrine states the skull is a fixed volume. Any increase in one component (blood, brain tissue, CSF) must be compensated by a decrease in another, or ICP rises. Post-op edema or bleeding disrupts this balance.
Pharmacology: Mannitol or hypertonic saline may be used to reduce cerebral edema. Antiemetics like ondansetron are crucial to prevent vomiting-induced ICP spikes. Corticosteroids (e.g., dexamethasone) reduce inflammation.
Memory Tips
Think "Neuro Check First": In any neurosurgical post-op scenario, your first and most frequent action is the neurological assessment. Use the mnemonic "LOC-MP" for the core components: Level of Consciousness, Orientation, Cranial nerves, Motor function, Pupils.
Acoustic Neuroma Specifics: Remember "Face and Hearing" (CN VII & VIII). Post-op, you're watching for a drooping face (CN VII palsy) and protecting the eye if blinking is impaired.
High-Frequency NCLEX Topics
This question integrates several high-yield NCLEX concepts: prioritization (assessment vs. intervention), postoperative care, neurological assessment, and complication monitoring. The NCLEX loves to test your ability to identify the first or most important action a nurse should take.
Watch Out for Question Variations!
Symptom Identification: "The nurse notes clear drainage from the patient's nose. What is the priority action?" (Answer: Test fluid for glucose to check for CSF, but first assess neuro status to rule out concurrent increased ICP).
Complication Focus: "Which finding requires immediate notification of the surgeon?" (Answer: A sudden decrease in LOC or a dilated, non-reactive pupil, indicating possible hematoma or herniation).
Patient Positioning: "How should the nurse position the patient post acoustic neuroma removal?" (Answer: Semi-Fowler's, head of bed 30-45 degrees, with head in neutral alignment to promote venous drainage).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on a neurosurgical unit. Mr. Johnson, 52, has just returned from the PACU (Post-Anesthesia Care Unit) 2 hours after a right acoustic neuroma resection. He is sleepy but arousable to voice. His vital signs are stable.
Nursing Intervention Strategy:
Immediate & Frequent Assessment: Perform a full neurological assessment per protocol (e.g., every 15 min x 1 hour, then every 30 min x 2 hours, then hourly). Use a standardized tool like the Glasgow Coma Scale (GCS). Specifically check:
CN V (Trigeminal): Assess corneal reflex by gently touching the cornea with a wisp of cotton. Watch out for confusion! Loss of this reflex increases risk of corneal abrasion.
CN VII (Facial): Ask patient to smile, show teeth, puff out cheeks, close eyes tightly. Note any asymmetry or weakness.
Motor/Sensation: Check grip strength and foot push/pull bilaterally. Assess for numbness or tingling.
Pupils: Check size, shape, equality, and reaction to light every time.
Airway & Breathing: Monitor respiratory rate and pattern. Sedation and potential brainstem involvement can cause respiratory depression. Have suction equipment ready.
Positioning & Mobility: Maintain head of bed at 30 degrees. Log-roll the patient when turning to avoid neck flexion or straining. Implement fall precautions due to potential dizziness or balance issues from CN VIII involvement.
Wound & Drain Care: Observe the posterior auricular incision site for bleeding, swelling, or drainage. Note any clear or pink-tinged drainage on the dressing. Do NOT pack the ear if there is drainage; place a loose, sterile gauze pad to absorb it.
Medication Administration: Administer corticosteroids (e.g., dexamethasone) on time to control edema. Give antiemetics prophylactically or as needed to prevent vomiting. Manage pain with opioids cautiously, monitoring respiratory status closely.
Patient & Family Education: Explain the purpose of frequent waking for neuro checks. Teach the patient to avoid coughing, sneezing forcefully, blowing the nose, or straining with bowel movements, as these actions increase ICP.
Patient Safety and Precautions:
Eye Care is Critical: If the patient has facial nerve weakness (inability to close eye fully), institute corneal protection protocols immediately: artificial tears every 1-2 hours, lubricating ointment at night, and possibly taping the eyelid shut or using a moisture chamber.
Signs of CSF Leak: Test any clear nasal or aural drainage with a dextrostick. CSF contains glucose and will give a positive reading, whereas mucus will not. Report a suspected leak immediately.
Signs of Increased ICP: Report any of the following STAT: decline in GCS score by 2 or more points, new pupillary abnormality, new-onset severe headache, projectile vomiting, or development of Cushing's triad (hypertension, bradycardia, irregular respirations).
Nursing Procedure & Medication FlowNeurological Assessment Flow:
1. Introduce yourself, call patient by name.
2. Assess Arousal: Speak loudly. If no response, apply a painful stimulus (trapezius pinch).
3. Assess Orientation: Person, place, time, situation.
4. Assess Pupils: "PERRLA" - Pupils Equal, Round, Reactive to Light and Accommodation.
5. Assess Cranial Nerves: Focus on II, III, IV, VI (pupils, EOMs), V, VII, VIII, IX, X (gag).
6. Assess Motor: "Squeeze my fingers, push/pull against my hands with your feet."
7. Assess Sensation: Light touch on extremities.
8. Document findings clearly and concisely, noting any changes from baseline.
Medication Cautions:
Mannitol: Monitor for electrolyte imbalance (especially hypernatremia, hypokalemia) and fluid overload (assess lung sounds, I&O). Use a filter needle and administer via IV pump.
Opioid Analgesics: Can mask neurological signs (decreased LOC) and cause respiratory depression. Always pair administration with increased frequency of respiratory and neuro checks.
A Word from Your Senior Nurse
"Neurosurgical patients can change in an instant. That first shift post-op is all about vigilant surveillance. Your hands-on neuro assessment is more valuable than any monitor. I've caught a developing hematoma because a patient's handgrip was just a little weaker on one side, 30 minutes before their blood pressure spiked. Trust your assessment skills. In the NCLEX and in practice, remember: You can't fix what you don't know is broken. Assess first, always."
Acoustic Neuroma — A benign, slow-growing tumor of the vestibular portion of cranial nerve VIII (vestibulocochlear nerve). It arises from Schwann cells in the internal auditory canal.
Increased Intracranial Pressure — A pathological elevation of pressure within the rigid skull. Normal ICP is 5-15 mmHg. It is a life-threatening emergency in neurosurgical patients.
Cerebrospinal Fluid (CSF) Leak — An escape of cerebrospinal fluid from the subarachnoid space, often through a dural tear, presenting as clear drainage from the nose (rhinorrhea) or ear (otorrhea). It poses a risk for meningitis.
Cranial Nerve VII (Facial Nerve) — The nerve responsible for facial muscle movement, taste to the anterior 2/3 of the tongue, and lacrimation. It is at high risk during acoustic neuroma surgery, and palsy results in facial droop and inability to close the eye.
Glasgow Coma Scale — A standardized neurological assessment tool that evaluates a patient's level of consciousness based on three parameters: Eye opening (1-4), Verbal response (1-5), and Motor response (1-6). Scores range from 3 (deep coma) to 15 (fully awake).