A blood lancet, or simply lancet, is a small medical implement used for blood sampling. A blood lancet is similar to a small scalpel but with a double-edged blade or needle. Lancets are used to make punctures to obtain small blood specimens, are generally disposable, and are commonly used in the treatment of diabetes. The small blood samples obtained can be tested for blood glucose, hemoglobin, and many other blood components. Lancets are also used to prick the skin in skin testing for allergies.[1]
A blood-sampling device, also known as a lancing device, is a reusable instrument equipped with a lancet. It is also most commonly used by diabetics during blood glucose monitoring. The depth of skin penetration can be adjusted for various skin thicknesses.