Non-pitting edema is seen in which of the following disease?

UPPSC 2023

Medical & Surgical Nursing

Medium

Appeared in: UPPSC 2023

Explanation

Filariasis is a parasitic infection that directly damages and obstructs the lymphatic system.
This blockage prevents the drainage of lymph, a protein-rich fluid, from the interstitial space.
The resulting accumulation of high-protein fluid causes a firm, brawny swelling known as lymphedema or elephantiasis, which characteristically does not pit upon pressure.

Option A: Congestive heart failure causes pitting edema, not non-pitting. The mechanism is increased venous hydrostatic pressure forcing low-protein fluid into the tissues.
Option B: Nephrotic syndrome causes generalized pitting edema. The mechanism is a significant loss of albumin in the urine, which lowers plasma oncotic pressure and allows fluid to escape into the interstitial space.
Option C: Liver cirrhosis leads to pitting edema. The mechanisms include decreased albumin synthesis (lowering oncotic pressure) and portal hypertension (increasing hydrostatic pressure).

Clinical Relevance

Nursing practice connection: Knowing Pathophysiology and causes of pitting vs. non-pitting edema helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Assessing for pitting is a crucial nursing skill to differentiate the underlying cause of edema, which guides further diagnosis and treatment. The technique helps distinguish between fluid overload states and lymphatic or endocrine issues.
Management of non-pitting lymphedema focuses on compression therapy, elevation, and treating the underlying cause (e.g., antiparasitic drugs for filariasis), which differs significantly from the diuretic-based treatment for pitting edema.
What if? If a patient presents with non-pitting edema but has no travel history for filariasis and shows signs of fatigue, weight gain, and cold intolerance, the nurse should suspect myxedema due to hypothyroidism as the cause, prompting a different diagnostic and treatment pathway.

How to Approach the Question

First, identify the key term in the question: 'Non-pitting edema'.
Recall the main mechanisms of edema: increased hydrostatic pressure, decreased oncotic pressure, and lymphatic obstruction.
Associate non-pitting edema primarily with lymphatic blockage (lymphedema) or tissue deposition of substances (myxedema).
Evaluate each option: Congestive heart failure, nephrotic syndrome, and liver cirrhosis are classic examples of conditions causing pitting edema due to imbalances in fluid pressures.
Identify Filariasis as a cause of lymphatic obstruction, which correctly matches the pathophysiology of non-pitting edema.

Concept Tested & Keywords

Qv4mLTMjpvmqsmmDmx4gre

E6 Medicine Harrison 22e Part 1 p. 322-324

E6 Physiology Essentials Sembulingam 10e Part 1 p. 168-171

E6 PATHOLOGY QUICK REVIEWBased on Harsh Mohan Textbook of PATHOLOGY p. 43-45