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.
Review Date: 07/04/2011
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine,
Harvard Medical School; Physician, Massachusetts General Hospital.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
