Finger Stick - a method of blood collection where a nurse or lab person punctures the finger with a lancet to obtain a blood sample. Most often used for babies and children and occasionally, adults. Heel Stick- a method of blood collection where a nurse or lab person punctures the heel of a baby. The heel area may by used for newborns to age 6 months weighing between 6 and 20 pounds. Venipuncture - a method of blood collection where a nurse of lab person punctures a vein with a needle, usually in the area between the elbow and hand.
Venipuncture is used most often in adult patients.
The site selected depends on the patient age and how much blood is needed. A venipuncture is used when multiple tubes are needed, for example, a blood chemistry panel, coagulation tests, or blood cultures. Each lancet is sterile and for one time use. Needle size is based on preference but usually between 20 and 23 gauge. Each needle is sterile and for one time use.