HESI Makeup Day Practice Test 2026 - Free HESI Practice Questions and Study Guide

Enlarged lymph nodes signal that the immune system and lymphoid tissue are being affected, which is a common pattern seen with HIV infection. Intravenous drug use creates a high-risk route for HIV transmission through sharing needles, so when you see generalized lymphadenopathy in someone with that history, HIV becomes the most likely diagnosis to consider. HIV often produces swollen, non-tender nodes in multiple areas as the virus replicates and the immune system responds, and this finding can appear early and persist over time.

Other options can cause node enlargement too, but they don’t fit the typical combination as neatly. Tuberculosis can cause lymph node swelling, but it is usually localized and linked to other signs like a persistent cough or night sweats. Hepatitis C primarily affects the liver and isn’t a common cause of generalized lymphadenopathy. Lymphoma can cause enlarged nodes, and HIV infection does increase the risk of lymphoma, but the presence of a risk factor for HIV and the common HIV-associated pattern of generalized lymphadenopathy makes HIV the most plausible initial suspicion.