Which comfort device is used to prevent foot drop?

AIIMS Raipur - 2017 (Shift-3)

Nursing Foundation

Easy

Appeared in: AIIMS Raipur - 2017 (Shift-3)

Explanation

Foot drop is a condition where the foot is permanently fixed in plantar flexion (pointing downwards) due to muscle weakness and tendon shortening from prolonged immobility.
A foot board is a rigid device placed at the end of the bed, against which the patient's soles rest.
This device maintains the feet in a neutral, dorsiflexed position (at a 90-degree angle to the legs), which directly counteracts the plantar flexion that leads to foot drop.

Option A: A bed cradle is a frame designed to keep the weight of bed linens off a patient's legs or abdomen. It provides no support to the feet.
Option C: Sandbags are used for firm support to immobilize a limb or maintain a specific body alignment, such as preventing the outward rotation of the legs after hip surgery.
Option D: A pillow is too soft and does not provide the firm, consistent support needed to keep the foot in a dorsiflexed position. It can be easily compressed or moved.

Visual 1: Diagram: A visual comparison of a normal foot position, plantar flexion (foot drop), and dorsiflexion (the position maintained by a foot board).
Visual 2: Infographic: Highlighting key pressure points to monitor when using a foot board, such as the heels and the ball of the foot, with tips for preventing skin breakdown.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Use of positioning devices to prevent complications of immobility as background academic context rather than a clinical decision trigger.
Nurses must proactively assess all bedridden or immobile patients for the risk of developing foot drop, as it can significantly impair mobility and increase the risk of falls.
Correct application and regular monitoring are crucial. The nurse should ensure the foot board is correctly placed and frequently check the patient's heels and soles for signs of pressure injury.
What if the patient has a pressure injury on their heel? In this scenario, a standard foot board would be contraindicated. The nurse should use an alternative, such as a specialized foot boot or high-top sneakers, which can maintain dorsiflexion while suspending the heel to prevent any contact pressure.

How to Approach the Question

First, identify the key clinical term in the question: 'foot drop'. Recall or deduce that this means the foot dropping into a pointed-down position (plantar flexion).
Next, analyze the goal: 'prevent' this condition. This implies needing a device that can hold the foot up, in a neutral or dorsiflexed position.
Evaluate each option based on its primary function. A bed cradle lifts sheets, a sandbag immobilizes, and a pillow provides soft, general support.
Recognize that a 'foot board' is a rigid surface specifically designed to be placed at the foot of the bed to provide a surface for the feet to press against.
Conclude that the foot board is the only device listed whose structure and purpose are to maintain the foot at a 90-degree angle, directly counteracting the mechanism of foot drop.

Concept Tested & Keywords

Concept Tested: Use of positioning devices to prevent complications of immobility.
Stem keywords: comfort device, prevent, foot drop
Lead-in keywords: Which
Negative lead-in flag: false

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