If flashes of light or floaters occur suddenly or in great numbers, or if you are not sure what to do, do not wait for vision loss to occur before you call your doctor. If you cannot reach your doctor, go to the emergency room.
If viral RNA is detected, a positive result is reported; if viral RNA is. not detected, the test result is negative. â¢ Quantitative viral load tests â These tests measure the amount of virus in. one milliliter of blood. In the past the level of the viral load was correlated with.
2. 8 What is a viral load test? A viral load test is a measurement of the amount of HIV virus in a sample of blood. This is usually reported as the number of copies per millilitre (copies/mL). Information about units of measure for blood tests. Even though less than 1% of HIV is in your blood, viral load is a good marker of how much HIV is in your body. Blood tests are also easier than trying to test lymph nodes or other body tissues. Viral load tests can also check the amount of HIV in other kinds of sample like genital fluid, semen or spinal fluid. Types of viral load test. There are three main types of viral load tests: 1  PCR â polymerase chain reaction (written as PCR RNA). This is the most widely used type of test. 2  bDNA â branched DNA. 3  NASBA â nucleic acid sequence based amplification.