A patient has been admitted to the hospital for a long time or is bedridden. Which action should be preferred by the nurse to prevent bone demineralization?

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

Ambulation in the hall is a weight-bearing activity, which is the most crucial stimulus for bone maintenance and formation.
According to Wolff's Law, mechanical stress on bones from activities like walking signals osteoblasts (bone-building cells) to increase bone density.
Prolonged bed rest removes this mechanical stress, leading to accelerated bone resorption (breakdown) and demineralization, a condition known as disuse osteoporosis.
Ambulation directly counteracts this process by restoring the necessary physiological load on the skeleton.

Option A: Changing the patient's position every two hours is the standard of care for preventing pressure ulcers (bedsores) by relieving pressure on the skin. It does not provide the weight-bearing stress needed to prevent bone demineralization.
Option B: While a high-protein, high-calorie diet is important for tissue repair and overall health in immobile patients, nutrition alone cannot prevent bone loss without the mechanical stimulus of weight-bearing exercise.
Option C: Milk and dairy products are excellent sources of calcium and vitamin D, which are the essential building blocks for bone. However, simply providing the materials is not enough. Without the signal from weight-bearing activity, the body will not effectively use these nutrients to strengthen bones.

Clinical Relevance

Nursing practice connection: Use the key finding related to Prevention of Disuse Osteoporosis in Immobility to guide bedside assessment, documentation, and the next nursing action.
Nurses are at the forefront of preventing the complications of immobility. Promoting early and progressive mobilization is a key nursing responsibility that significantly impacts patient outcomes.
When ambulating a patient who has been on prolonged bed rest, the nurse must prioritize safety. Assess for orthostatic hypotension (dizziness on standing), use a gait belt, and ensure a clear path to prevent falls, which could lead to fractures in already weakened bones.
What if the patient is unable to ambulate? The nurse should implement the next best alternatives that provide some form of weight-bearing or resistance. This can include assisting the patient to stand at the bedside, using a tilt table, or implementing active/resistive range-of-motion exercises.

How to Approach the Question

First, identify the key condition and risk factor in the question stem: the patient is bedridden, which means prolonged immobility.
Next, identify the specific problem to be prevented: 'bone demineralization'.
Connect the risk factor (immobility) to the problem (bone demineralization). Recall the physiological principle that lack of weight-bearing leads to bone loss.
Evaluate each option to see which one directly addresses the root cause. Ask yourself, 'Which of these actions provides weight-bearing stress to the bones?'
Side changes and diet are important for other complications of immobility (pressure ulcers, malnutrition) but do not provide mechanical stress.
Ambulation is the only option that involves active weight-bearing, making it the most effective and preferred intervention to stimulate bone formation.

Concept Tested & Keywords

Concept Tested: Prevention of Disuse Osteoporosis in Immobility
Stem keywords: bedridden, long time, bone demineralization
Lead-in keywords: preferred action
Clinical cues: Patient is bedridden or has been in the hospital for a long time, indicating prolonged immobility.

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 4 p. 101-103

E6 Nursing Fundamentals Potter Perry 12e Part 4 p. 149-151

Practise the full NORCET 2 - 2021 (shift-1)

Attempt every question from this paper in a timed mock, then review the full solution for each one.