A normal CD4 count in adults is approximately how many cells per microliter?

A normal CD4 count in adults is approximately how many cells per microliter?

• A. 1000
• B. 100
• C. 50
• D. 500

Answer: (A)

CD4 T cells are helper lymphocytes, and in a healthy adult their circulating count sits within a broad normal range. The typical reference is roughly five hundred to about fifteen hundred cells per microliter, with an average around one thousand. That’s why the single-value representative choice is about one thousand per microliter. A count around five hundred is normal but at the lower end and less representative of the typical level. Counts like one hundred or fifty are far below normal for an adult.

CD4 T cells are helper lymphocytes, and in a healthy adult their circulating count sits within a broad normal range. The typical reference is roughly five hundred to about fifteen hundred cells per microliter, with an average around one thousand. That’s why the single-value representative choice is about one thousand per microliter. A count around five hundred is normal but at the lower end and less representative of the typical level. Counts like one hundred or fifty are far below normal for an adult.