Wash your hands. Then gently prick the side (the less sensitive part) of your finger with the lancet to draw out a drop of blood.
Reviewed last on: 6/17/2008
Elizabeth H. Holt, MD, PhD, Assistant Professor of Medicine, Section of Endocrinology and Metabolism, Yale University. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.