GED Science TestLife ScienceMedium
A patient presents with symptoms including unexplained weight loss, chronic fatigue, and frequent opportunistic infections such as pneumonia and candidiasis. Blood tests reveal a significantly reduced CD4+ T cell count. Which of the following conditions is most likely indicated by these findings?
- ARheumatoid Arthritis
- BAcquired Immunodeficiency Syndrome (AIDS)
- CType 1 Diabetes
- DMultiple Sclerosis
Show answer & explanationAnswer & explanation
Correct answer: B. Acquired Immunodeficiency Syndrome (AIDS)
The constellation of unexplained weight loss, chronic fatigue, opportunistic infections, and a low CD4+ T cell count are classic indicators of Acquired Immunodeficiency Syndrome (AIDS), which is the most advanced stage of HIV infection. The other conditions listed are autoimmune or metabolic disorders and do not typically present with this specific immune profile.
Why the other options are wrong
- A. Rheumatoid Arthritis is an autoimmune disease causing joint inflammation, not general immune suppression and opportunistic infections.
- C. Type 1 Diabetes is an autoimmune disorder affecting insulin production, not typically characterized by opportunistic infections.
- D. Multiple Sclerosis is an autoimmune disease affecting the central nervous system, not primarily immune deficiency.
AIDS (Acquired Immunodeficiency Syndrome)
The most advanced stage of HIV infection, characterized by severe damage to the immune system, leading to opportunistic infections and certain cancers.
- Caused by the Human Immunodeficiency Virus (HIV).
- Results in a critically low CD4+ T cell count.
- Patients are highly susceptible to opportunistic infections.
Memory trick: Immune System's DEFEAT: Diseases, Exhaustion, Failure, Attacked T-cells.