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.
The viral load test measures the amount of HIV virus in your blood. There are different techniques for doing this: The PCR (polymerase chain reaction) method uses an enzyme to multiply the HIV in the blood sample. Then a chemical reaction marks the virus.