# A nurse is caring for a patient with viral encephalitis. Which nursing intervention is the highest priority to ensure patient safety?

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> subject: Adult Health

## 문제

A nurse is caring for a patient with viral encephalitis. Which nursing intervention is the highest priority to ensure patient safety?

## 보기

1. Administering prescribed antiviral medications on schedule
2. Monitoring vital signs every 4 hours
3. Implementing seizure precautions and maintaining a safe environment **✔ 정답**
4. Encouraging fluid intake to prevent dehydration

**정답: 3**

## 해설

Seizure precautions are the highest priority safety intervention for encephalitis patients due to the high risk of seizures from brain inflammation. Other interventions like antiviral medications, vital sign monitoring, and fluid intake are important but do not address the immediate safety threat of seizures.

## 심화 해설

Priority Setting in Viral Encephalitis

When caring for a patient with viral encephalitis, the nurse must apply the ABC (Airway, Breathing, Circulation) framework alongside safety priorities. Encephalitis involves inflammation of the brain parenchyma, which directly irritates cortical neurons. This neuronal irritation lowers the seizure threshold, making seizure activity a primary and immediate threat to airway patency, oxygenation, and cerebral perfusion.

Rationale for the Correct Answer

The highest priority intervention is implementing seizure precautions and maintaining a safe environment. The pathophysiological process of viral encephalitis—brain inflammation and neuronal dysfunction—creates a high risk for generalized or focal seizures. A seizure can immediately compromise the airway, lead to hypoxia, and increase intracranial pressure. Furthermore, the clinical presentation of acute encephalitis syndrome often includes altered consciousness and motor abnormalities, which predispose the patient to physical injury from falls or uncontrolled movements. As highlighted in the study by Dwibedi et al., acute encephalitic syndrome encompasses a wide spectrum of clinical presentations, and neurological manifestations such as seizures are a critical component of the disease process that must be anticipated and managed to prevent secondary injury [1]. Therefore, ensuring a patent airway during a seizure, padding side rails, and having suction and oxygen equipment ready directly addresses the most immediate threats to life and safety.

Analysis of Incorrect Options

- Option 1: Administering prescribed antiviral medications on schedule. While administering antiviral therapy like acyclovir is a critical component of treating the underlying cause of herpes simplex virus encephalitis, it is a pharmacological intervention that addresses the long-term disease progression. In the acute care setting, a sudden seizure or aspiration event poses a more immediate threat to life than a delayed dose of medication. The nurse must first stabilize the patient's immediate physiological safety before addressing the underlying etiology.

- Option 2: Monitoring vital signs every 4 hours. Viral encephalitis can cause autonomic dysfunction and increased intracranial pressure, which manifest as changes in vital signs (e.g., Cushing's triad: bradycardia, irregular respirations, and widened pulse pressure). However, monitoring every 4 hours is an insufficient frequency for a patient with an acute, unstable neurological condition. Neurological status and vital signs can deteriorate rapidly, requiring more frequent, often continuous, assessment. This intervention is important but not the highest priority when compared to actively preventing a life-threatening event like a seizure.

- Option 4: Encouraging fluid intake to prevent dehydration. Maintaining hydration is a supportive care measure. However, a patient with encephalitis may have a depressed level of consciousness, placing them at high risk for aspiration with oral intake. Before encouraging fluids, the nurse must first conduct a thorough swallow evaluation. More critically, the risk of aspiration and airway compromise from a seizure or altered mental status far outweighs the risk of dehydration in the immediate prioritization of care. Safety and airway protection always take precedence over nutritional and fluid balance concerns in the acute phase.References (research sources)

- [1]Prevalence & clinical outcome of autoimmune encephalitis versus viral encephalitis in children with acute encephalitis syndrome: A prospective observational study.Research articleDwibedi B, Satapathy AK, Jain A, Champatiray JR, Dash M, Mishra B, Patra G, Prakash O, Abbas F, Purkait S. (2024) · DOI: 10.25259/ijmr_2332_23

## 임상 시나리오

Seizure Safety in EncephalitisPrioritizing Airway Protection and Injury Prevention
In viral encephalitis, brain inflammation directly irritates neurons, drastically lowering the seizure threshold. The highest priority is seizure precautions because a seizure can immediately compromise the airway and cause hypoxia.

Prepare the environment by padding side rails, removing sharp objects, and ensuring suction equipment and oxygen are set up and functional at the bedside. Keep the bed in the lowest position.

CautionDo not restrain the patient or place anything in the mouth during a seizure. Focus on maintaining a patent airway with positioning and suctioning only as needed post-ictally.

## 핵심 개념

- **Viral Encephalitis** — Inflammation of the brain parenchyma caused by a viral infection, leading to neuronal irritation and a lowered seizure threshold.
- **Seizure Precautions** — Safety interventions including padding side rails, ensuring suction and oxygen are available, and maintaining a patent airway to prevent injury during a seizure.
- **ABC Framework** — A prioritization model in nursing that places Airway, Breathing, and Circulation as the most critical needs to address first.
- **Seizure Threshold** — The level of stimulation at which a neuron will fire a seizure; lowered by conditions like encephalitis, making seizures more likely.
- **Cerebral Perfusion** — The flow of blood through the brain's vascular network, essential for delivering oxygen and nutrients, which can be compromised during prolonged seizure activity.

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