1. Health

Viral Load

From , former About.com Guide

Updated October 11, 2007

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Definition:
A blood test that measures the quantity of active HIV in the blood. Results are expressed as the number of copies per milliliter of blood plasma. Viral load testing along with CD4 count is used to determine when to initiate and/or change HIV medication regimens.

What Are CD4 Cells and Why Are They Important

What is Viral Load and Why is it Important

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