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.
A: The earliest signs of an HIV infection are flu-like symptoms that include fever, rash, swollen lymph nodes, headache and fatigue, according to Mayo Clinic. These symptoms usually appear between 30 and 60 days after a person has been infected, and they may be mistaken for another viral infection.