TY - CHAP M1 - Book, Section TI - HIV Infection & AIDS: Clinical Findings A1 - Gandhi, Monica A1 - Spinelli, Matthew A. A1 - Katz, Mitchell H. A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. A2 - McQuaid, Kenneth R. PY - 2023 T2 - Current Medical Diagnosis & Treatment 2023 AB - The complications of HIV-related infections and neoplasms affect virtually every organ. The general approach to the people living with HIV with symptoms is to evaluate the organ systems involved, aiming to diagnose treatable conditions rapidly. As shown in Figure 31–1, the CD4 lymphocyte count level enables the clinician to focus on the diagnoses most likely to be seen at each stage of immunodeficiency. Certain infections may occur at any CD4 count, while others rarely occur unless the CD4 lymphocyte count has dropped below a certain level. For example, a patient with a CD4 count of 600 cells/mcL, cough, and fever may have a bacterial pneumonia but would be very unlikely to have Pneumocystisjirovecii pneumonia. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/24 UR - accessmedicine.mhmedical.com/content.aspx?aid=1193134321 ER -