A failure in lymphatic system to return body fluids adequately results in?

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

Applied Anatomy

Easy

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

Explanation

The lymphatic system's primary role includes draining excess protein-rich fluid (lymph) from the interstitial spaces between cells.
When this system fails due to obstruction or damage, it can no longer return this fluid to the bloodstream.
The subsequent accumulation of fluid in the tissue spaces leads to a generalized swelling known as edema (specifically, lymphedema).
This option is the most comprehensive and accurate description of the general physiological consequence of lymphatic failure.

Option A: This is too specific. While lymphedema frequently affects the hands and legs (extremities), it is not the universal outcome. The location depends on the site of the lymphatic blockage.
Option B: Similar to the first option, this is an overly specific description. Lymphedema can occur in many parts of the body, not just the face and hands.
Option C: The spleen is a lymphoid organ involved in filtering blood and immune responses, but it is not the primary site for fluid accumulation in cases of general lymphatic drainage failure. The edema occurs in the peripheral interstitial tissues.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of Edema due to Lymphatic System Failure as background academic context rather than a clinical decision trigger.
Nurses play a vital role in managing lymphedema, which is a chronic and progressive condition.
Key nursing interventions include meticulous skin care to prevent infections (cellulitis), applying compression garments, teaching limb elevation, and educating the patient to avoid trauma, injections, or blood pressure measurements on the affected limb.
Patient safety is critical. An affected limb is vulnerable to infection because the stagnant, protein-rich fluid is an ideal medium for bacterial growth, and the local immune response is impaired.

How to Approach the Question

First, identify the core concept of the question, which is the function of the lymphatic system regarding fluid balance.
Recall that the lymphatic system drains excess fluid from tissues.
Logically deduce the consequence of this system's failure: if fluid is not drained, it must accumulate.
Evaluate the options. Options A and B describe specific locations of swelling, which are possible but not the general rule.
Option C points to a specific organ (spleen), which is not the primary site of this type of edema.
Option D, "Swelling of tissues as oedema," provides the most accurate and general definition of what happens when the lymphatic system fails. Select this as the best answer.

Concept Tested & Keywords

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