Answer
Apr 17, 2025 - 01:35 PM
Lancet needles, used for blood sampling, typically range in size from 21 to 30 gauge. The higher the gauge number, the thinner the needle; for example, a 30-gauge lancet is thinner than a 21-gauge one. The needle length is generally short, usually around 1 to 2 millimeters, designed to puncture the skin just enough to obtain a blood sample.
