What will you do for prevention of pressure sore in unconscious patient?

NCL (MP) Nursing Officer - 2020

Medical & Surgical Nursing

Easy

Appeared in: NCL (MP) Nursing Officer - 2020

Explanation

Pressure ulcers develop when prolonged pressure, exceeding capillary closing pressure (around 32 mm Hg), cuts off blood supply to tissues, leading to cell death.
Frequent position changes are the most effective and primary method to relieve this pressure, allowing blood to flow back into ischemic areas.
For immobile patients, a turning schedule of at least every 2 hours is the standard of care to prevent skin breakdown.
An unconscious patient cannot shift their own weight, making nurse-initiated repositioning the cornerstone of prevention.

Option B: A generic 'soft bed' is not a specific therapeutic intervention. While pressure-redistributing mattresses are used, they are an adjunct to, not a replacement for, regular repositioning. Some soft surfaces can even increase shear forces.
Option C: A hard bed concentrates pressure on bony prominences (like the sacrum, heels, and hips), which significantly increases the risk of developing pressure ulcers.
Option D: While poor hydration and malnutrition are significant risk factors that impair skin integrity and wound healing, they do not cause pressure ulcers directly. The primary cause is pressure.

Clinical Relevance

Nursing practice connection: Use the key finding related to Pressure Ulcer (Decubitus Ulcer) Prevention in Immobile Patients to guide bedside assessment, documentation, and the next nursing action.
Pressure ulcer prevention is a key nursing quality indicator. Failure to prevent them can lead to pain, infection, increased length of hospital stay, and significant healthcare costs.
Nurses must meticulously document all repositioning and skin assessments in the patient's chart, often using a turning clock or schedule.
What if the patient has a spinal cord injury and cannot be turned in the standard way? The nurse would use specialized techniques like the log-rolling method with sufficient staff or a kinetic therapy bed that provides continuous, slow, side-to-side rotation to redistribute pressure.

How to Approach the Question

First, identify the core problem in the question: preventing pressure sores in an immobile (unconscious) patient.
Recall the pathophysiology of pressure sores: they are caused by unrelieved pressure that obstructs blood flow.
Analyze the options based on which one directly addresses the primary cause (pressure).
Frequent position changes directly relieve pressure.
Evaluate the other options: a soft/hard bed relates to the surface pressure, and hydration relates to skin resilience. While relevant, they are not the primary action to relieve pressure.
Conclude that the most direct and effective intervention is to change the patient's position frequently.

Concept Tested & Keywords

Concept Tested: Pressure Ulcer (Decubitus Ulcer) Prevention in Immobile Patients
Stem keywords: prevention, pressure sore, unconscious patient
Lead-in keywords: What will you do
Clinical cues: The patient's state of being 'unconscious' is a critical cue, as it implies complete immobility and inability to perceive or respond to the discomfort of pressure, making them highly dependent on nursing care for prevention.