- Quantitative HIV Viral Load (QHIV)
This was the first type of viral load test available and is the least sensitive. It measures an amount of HIV RNA as low as 400 copies/ml of blood. Therefore, an undetectable viral load would be any HIV RNA amount less than 400 copies/ml of blood. The upper limit of this test is greater than 750,000 copies/ml of blood. This test is best suited for those patients who the doctors believes have a poorly controlled HIV infection. - Ultrasensitive HIV Viral Load (UHIV)
This viral load test can measure as little as 50 copies per ml of blood. When using this viral load test, an undetectable viral load would be any HIV RNA amount less than 50 copies/ml of blood. This test has an upper limit of 75,000 copies/ml of blood. This test is best suited for those patients the doctor believes has a well controlled HIV infection.Keep Your Virus Control With These Adherence Tools and Lessons

