# A nurse is caring for a patient with increased intracranial pressure (ICP). Which nursing intervention should be the highest priority to prevent further elevation of ICP?

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## 문제

A nurse is caring for a patient with increased intracranial pressure (ICP). Which nursing intervention should be the highest priority to prevent further elevation of ICP?

## 보기

1. Maintain the head of the bed elevated at 30 degrees with the head in neutral alignment **✔ 정답**
2. Administer prescribed mannitol 0.5 g/kg IV bolus immediately
3. Perform frequent neurological assessments every 15 minutes
4. Encourage deep breathing and coughing exercises to prevent pneumonia

**정답: 1**

## 해설

Maintaining head elevation at 30 degrees with neutral alignment is the highest priority as it promotes venous drainage, reducing ICP immediately without requiring a prescription. Other options like mannitol require orders, frequent assessments monitor but don't reduce ICP, and coughing can increase ICP.

## 심화 해설

Understanding the Priority: ICP Management

The question asks for the highest priority intervention to prevent further elevation of intracranial pressure (ICP). In managing a patient with increased ICP, the immediate nursing goal is to optimize conditions that facilitate cerebral venous outflow and maintain cerebral perfusion, as these directly and continuously influence ICP. While all options represent aspects of care, the concept of a "care bundle" for neuro patients, as highlighted in the literature on acute stroke unit care, emphasizes that foundational positioning is a constant, non-invasive intervention that underpins all other treatments .

Why Head-of-Bed Elevation and Neutral Alignment is the Priority

Elevating the head of the bed to 30 degrees with the head in a neutral, midline position is a cornerstone of positioning management. This intervention uses gravity to promote cerebral venous drainage from the brain via the jugular veins without compromising arterial inflow. When the head is turned or flexed, the jugular veins can be compressed, obstructing outflow and causing a rapid, passive increase in intracranial blood volume and thus ICP. A best evidence summary on positioning management for stroke patients identifies this specific positioning strategy as a critical component of care to improve clinical outcomes, as it directly mitigates a primary mechanism of secondary brain injury [1]. This makes it a continuous, proactive measure to prevent ICP spikes, rather than a reactive one.

Analysis of Other Options

- Administer prescribed mannitol 0.5 g/kg IV bolus immediately: Mannitol is a potent osmotic diuretic used to treat acute ICP elevations. However, it is a pharmacological intervention with significant risks, including fluid and electrolyte imbalances and a rebound phenomenon. It is not a first-line preventive measure but a treatment for a confirmed crisis, and its administration must be based on a clear medical order and clinical indication.

- Perform frequent neurological assessments every 15 minutes: Frequent neurological checks are essential for monitoring the patient’s status and detecting deterioration early. However, the act of assessment itself does not prevent ICP elevation; it only identifies it. The priority is to implement an intervention that actively prevents the complication.

- Encourage deep breathing and coughing exercises to prevent pneumonia: This intervention is contraindicated in a patient with increased ICP. Coughing and the Valsalva maneuver (which occurs during deep breathing exercises) significantly increase intrathoracic pressure. This pressure is transmitted to the cerebral venous system, directly impeding venous outflow and causing a sharp, dangerous spike in ICP.

The integration of evidence-based positioning into a care bundle is a key element for enhancing nursing competence and ensuring consistent, high-quality neuro care . The foundational step, before medications or other assessments, is to immediately optimize the patient's position to create a safe physiological environment for the injured brain [1].References (research sources)

- [1]Best evidence summary on positioning management in stroke patients.Research articleXiong Y, Pan M, Chai W, Lei H, Peng H, Hu Z, Li N, Liang Y, Kuang L, Liu H. (2025) · DOI: 10.3389/fneur.2025.1648841

## 임상 시나리오

ICP Prevention: Head PositioningFirst-Line Nursing Intervention for Neuro Patients
Maintain the head of bed elevated to 30 degrees with the head in a neutral, midline alignment. This uses gravity to optimize cerebral venous outflow without compromising arterial inflow, directly preventing ICP spikes.

Avoid any neck flexion, rotation, or hip flexion greater than 90 degrees. These positions can compress the jugular veins, obstructing venous drainage and causing a rapid, passive increase in intracranial blood volume.

CautionDo not encourage coughing or deep breathing exercises. The Valsalva maneuver increases intrathoracic pressure, which is transmitted to the cranial vault and can dangerously elevate ICP. Suctioning should be limited and preceded by pre-oxygenation.

## 핵심 개념

- **Intracranial Pressure (ICP)** — The pressure inside the skull exerted by brain tissue, blood, and cerebrospinal fluid; normal range is 5-15 mmHg.
- **Cerebral Perfusion Pressure (CPP)** — The net pressure gradient driving oxygen delivery to brain tissue, calculated as CPP = MAP - ICP; normal is 60-100 mmHg.
- **Cerebral Venous Outflow** — Drainage of deoxygenated blood from the brain via the jugular veins; impaired outflow causes a rapid increase in intracranial blood volume and ICP.
- **Mannitol** — An osmotic diuretic used to draw fluid from brain tissue into the vasculature, rapidly reducing ICP in acute settings.
- **Valsalva Maneuver** — Forced expiration against a closed glottis, which increases intrathoracic pressure, reduces venous return, and can dangerously elevate ICP.

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