SCD (Sequential Compressive Device) used for treatment of DVT patients, ensures:

Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Medical Surgical Nursing

Easy

Appeared in: Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Explanation

Sequential Compression Devices (SCDs) are a form of mechanical prophylaxis used to prevent blood clots, specifically Deep Vein Thrombosis (DVT).
The device consists of inflatable sleeves that wrap around the legs and apply intermittent, sequential pressure.
This action mimics the natural muscle-pumping effect of walking, which enhances venous return and prevents blood from pooling in the deep veins of the legs.
By improving circulation and preventing venous stasis, SCDs effectively reduce the risk of thrombus formation in high-risk, immobile patients.

Option A: This option describes the condition that SCDs are designed to prevent. The purpose of the device is to inhibit, not cause, the formation of thrombi.
Option C: SCDs are designed for mechanical circulatory support and have no function related to temperature regulation. They do not generate significant heat.
Option D: This option is incorrect because a correct answer is available among the choices. Option B accurately describes the function and outcome of using an SCD.

Clinical Relevance

Nursing practice connection: Knowing The function and purpose of Sequential Compression Devices (SCDs) in preventing Deep Vein Thrombosis (DVT) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses are responsible for the correct application of SCDs, ensuring a proper fit (e.g., two fingers should fit between the sleeve and the patient's leg) to maximize effectiveness and prevent skin breakdown or nerve compression.
Consistent use is crucial for DVT prevention. The nurse must educate the patient on the importance of the device and ensure it is running as prescribed, especially when the patient is in bed or a chair for prolonged periods.
Regular skin assessment under the sleeves is a key nursing intervention to check for redness, irritation, or pressure injuries.

How to Approach the Question

First, identify the core subject of the question: the function of a Sequential Compression Device (SCD).
Recall or deduce the primary purpose of an SCD, which is to prevent blood clots (DVT) in patients with limited mobility.
Analyze each option. Option A states the device causes clots, which is the opposite of its function. Eliminate it.
Option C mentions hypothermia, which is a thermal condition unrelated to the mechanical function of an SCD. Eliminate it.
Evaluate Option B. It links 'walking' and 'preventing blood clots'. Understand that the device mimics the muscle pump action of walking to achieve the goal of preventing clots. This makes it the most accurate description of the device's mechanism and purpose.
Since Option B is a valid answer, Option D ('None of the above') is incorrect.

Concept Tested & Keywords

Concept Tested: The function and purpose of Sequential Compression Devices (SCDs) in preventing Deep Vein Thrombosis (DVT).
Stem keywords: SCD, Sequential Compressive Device, DVT, treatment
Lead-in keywords: ensures

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