Microbiology

An HIV-positive patient with a viral load of 100,000 copies/mL of HIV RNA and a drop in his CD4 T-cell count from 240 to 50mL has been diagnosed with Pneumocystis jiroveci pneumonia. Which of the following is the best description of the stage of this patient’s HIV disease?

Name: An HIV-positive patient with a viral load of 100,000 copies/mL of HIV RNA and a drop in his CD4 T-cell count from 240 to 50mL has been diagnosed with Pneumocystis jiroveci pneumonia. Which of the following is the best description of the stage of this patient’s HIV disease?
Creator: Medical MCQ
Published: 2024-04-11T06:53:40+05:30
Keywords: Microbiology

💡 Explanation

## **Core Concept**
The patient's condition reflects the progression of HIV disease, characterized by a decline in CD4 T-cell count and an increase in viral load, leading to the development of opportunistic infections such as Pneumocystis jiroveci pneumonia (PCP). HIV disease progression is monitored through CD4 T-cell counts and viral loads. A low CD4 count and high viral load indicate advanced disease.

## **Why the Correct Answer is Right**
The correct answer, ****, describes the stage of HIV disease based on the Centers for Disease Control and Prevention (CDC) classification system, which categorizes HIV infection into three stages: acute HIV infection, clinical latency (HIV inactivity or dormancy), and AIDS (Acquired Immunodeficiency Syndrome). A CD4 count below 200 cells/mm³ or the occurrence of specific opportunistic infections (like PCP) qualifies as AIDS. This patient has a CD4 count of 50 cells/mm³ and has developed PCP, indicating a compromised immune system characteristic of AIDS.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option does not accurately describe the clinical presentation or the stage of HIV disease based on provided information.
- **Option B:** This option might refer to earlier stages of HIV infection or different conditions but does not accurately reflect the advanced stage indicated by the patient's low CD4 count and opportunistic infection.
- **Option C:** Although not directly provided, if this option does not specify AIDS or a condition consistent with a CD4 count of 50 and an opportunistic infection like PCP, it would be incorrect.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that a CD4 count below 200 cells/mm³ or the development of certain opportunistic infections (such as PCP) defines AIDS in an HIV-positive individual. Patients with AIDS are at significant risk for opportunistic infections and certain cancers, necessitating aggressive antiretroviral therapy (ART) and prophylaxis against opportunistic infections.

## **Correct Answer:** . **AIDS**

✓ Correct Answer: C. HIV infection, stage 3 (AIDS)

An HIV-positive patient with a viral load of 100,000 copies/mL of HIV RNA and a drop in his CD4 T-cell count from 240 to 50mL has been diagnosed with Pneumocystis jiroveci pneumonia. Which of the following is the best description of the stage of this patient’s HIV disease?

An HIV-positive patient with a viral load of 100,000 copies/mL of HIV RNA and a drop in his CD4 T-cell count from 240 to 50mL has been diagnosed with Pneumocystis jiroveci pneumonia. Which of the following is the best description of the stage of this patient’s HIV disease?

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