Standard Order of Blood Draw The order of tubes used in a blood draw is important when collecting a blood sample to prevent cross contamination in the various tubes used. The first draw is the blood culture, then the coagulation tube, non-additive tube, followed by additive tubes.
Acquired immunodeficiency syndrome (AIDS) is the condition that results from long-term (chronic) HIV infection and is defined by an absolute CD4 cell count of less than 200 cells/ÂµL and specific opportunistic infections or malignancies.
Symptoms of HIV. Most people who are infected with HIV experience a short, flu-like illness that occurs two to six weeks after infection. After this, HIV often causes no symptoms for several years. The flu-like illness that often occurs a few weeks after HIV infection is also known as seroconversion illness.It's estimated that up to 80% of people who are infected with HIV experience this illness.The most common symptoms are: 1  fever (raised temperature).he flu-like illness that often occurs a few weeks after HIV infection is also known as seroconversion illness. It's estimated that up to 80% of people who are infected with HIV experience this illness. The most common symptoms are: 1  fever (raised temperature).