Persistent generalized lymphadenopathy is caused by?

NCL (MP) Nursing Officer - 2019

Medical Surgical Nursing

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Appeared in: NCL (MP) Nursing Officer - 2019

Explanation

Persistent Generalized Lymphadenopathy (PGL) is defined as swollen lymph nodes in two or more non-contiguous sites that persist for over three months.
HIV infection causes a profound dysregulation of the immune system, leading to polyclonal B-cell activation and follicular hyperplasia in lymph nodes.
This systemic immune response results in the widespread and long-lasting lymph node enlargement characteristic of PGL.
PGL is a hallmark of chronic HIV infection and is classified as a WHO clinical stage 1 finding.

Option A: Herpes Simplex Virus (HSV) typically causes localized lymphadenopathy, known as regional adenitis. The nodes are usually tender and located near the area of the active herpetic outbreak (e.g., inguinal nodes with genital herpes). It does not cause a persistent or generalized pattern.
Option B: Varicella-Zoster Virus (VZV), which causes chickenpox and shingles, can lead to lymph node swelling. However, this is typically transient and resolves as the infection clears. It does not fit the definition of 'persistent' (lasting more than 3 months) generalized lymphadenopathy.
Option C: Hepatitis A Virus (HAV) is an infection that primarily affects the liver. While a mild, nonspecific viral response can sometimes involve transiently swollen lymph nodes, significant, persistent, or generalized lymphadenopathy is not a characteristic feature of Hepatitis A.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Etiology of Persistent Generalized Lymphadenopathy (PGL) as background academic context rather than a clinical decision trigger.
The presence of PGL is a major clinical red flag for underlying HIV infection. Nurses play a crucial role in identifying this sign during physical assessment and initiating the appropriate care pathway.
A key nursing action is to provide non-judgmental counseling and facilitate voluntary HIV testing (with informed consent) for patients presenting with PGL.
Assessment must include checking for 'B symptoms' (fever, night sweats, weight loss), as their presence alongside PGL may suggest progression of HIV disease or an opportunistic infection/malignancy like lymphoma.

How to Approach the Question

First, break down the key terms in the question: 'Persistent' (long-lasting, chronic) and 'Generalized lymphadenopathy' (swollen nodes in multiple, non-adjacent body areas).
This immediately points towards a systemic, chronic disease process affecting the immune system.
Next, evaluate each option based on its typical clinical presentation.
Recall that HSV and VZV (shingles/chickenpox) cause acute, localized infections with corresponding regional lymph node swelling.
Remember that HAV is a hepatitis virus, primarily affecting the liver, and is not known for causing significant, persistent lymphadenopathy.
Identify HIV as the virus that directly attacks the immune system, leading to chronic and systemic effects, making it the most logical cause of PGL.

Concept Tested & Keywords

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