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Blood test

Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

Blood test

Review Date: 8/23/2018

Reviewed By: Barry S. Zingman, MD, Medical Director, AIDS Center, and Clinical Director, Infectious Diseases, Montefiore Medical Center; Professor of Medicine, Albert Einstein College of Medicine, Bronx, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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