Raising the foot end of the bed of the patient with chronic venous insufficiency will help in?

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

Medical & Surgical Nursing

Medium

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2015

Explanation

In chronic venous insufficiency (CVI), the valves in the leg veins are incompetent, leading to impaired blood return to the heart.
Raising the foot end of the bed positions the legs above the level of the heart.
This position utilizes gravity to assist the flow of venous blood back to the heart, directly addressing the issue of venous stasis.
This action is a primary, non-pharmacological intervention aimed at improving venous return and reducing venous hypertension.

Option A: Preventing edema is a consequence or a desired outcome of improved venous drainage, not the direct mechanism of action. The question asks what the elevation helps in doing, and the most direct answer is facilitating drainage.
Option B: The term 'circulation' is too broad. It encompasses both arterial and venous systems. Leg elevation specifically targets and improves venous return, not necessarily arterial circulation.
Option C: While reducing the symptoms of CVI (like swelling and a feeling of heaviness) does provide comfort, this is a secondary benefit, not the primary therapeutic or physiological purpose of the intervention.

Clinical Relevance

Nursing practice connection: Use the key finding related to Management of Chronic Venous Insufficiency (CVI) to guide bedside assessment, documentation, and the next nursing action.
Patient education is a key nursing role in CVI management. Nurses must teach patients the importance of consistent leg elevation, proper use of compression stockings, and lifestyle modifications.
Nurses should assess for contraindications to leg elevation, such as severe arterial insufficiency, where elevation could worsen limb ischemia, or certain cardiac conditions.
What if the patient also has peripheral arterial disease (PAD)? In this case, significant leg elevation might be contraindicated as it could reduce arterial blood flow to the feet, causing ischemic pain. A more neutral position or slight elevation would be safer.

How to Approach the Question

First, identify the core pathophysiology of the condition mentioned: Chronic Venous Insufficiency involves poor venous blood return from the legs.
Next, analyze the intervention: Raising the foot of the bed elevates the legs.
Connect the intervention to the pathophysiology: How does elevating the legs affect poor venous return? It uses gravity.
Evaluate the options to find the most direct and precise physiological explanation. 'Venous drainage by gravity' describes the direct mechanism.
Differentiate this direct mechanism from its outcomes (preventing edema), its secondary benefits (comfort), and overly general descriptions (improve circulation).

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 pp. 81-83, 80-82