fingerstick specimen

capillary specimen

A small blood sample taken by lancing a fingertip and placing one end of a capillary tube at the edge of the blood drop. The blood migrates up the tube by capillary action.

Tests commonly performed using capillary blood:
• Point-of-care testing—e.g., blood glucose monitoring;
• Complete blood count (CBC), haemoglobin and haematocrit (H&H);
• Peripheral blood smear—manual slide for white blood cell (WBC) differential;
• Neonatal blood gases;
• Neonatal bilirubin;
• Neonatal screening (filter paper or blood spot testing);
• Electrolytes;
• Serum lead in children.

fingerstick specimen

Capillary specimen Lab medicine A blood sample obtained by piercing a finger using spring-loaded device with a chisel or with a blade type lancet; once punctured, the fingertip is squeezed so that blood drops can be collected into a capillary tube or onto a glass slide; FSs can be used for micromethods–eg, to measure cholesterol, glucose, and other analytes
References in periodicals archive ?
Fingerstick specimens are currently used for a wide range of tests for haematology, chemistry and serology.
In addition, fingerstick specimens may be used when full tubes are not needed for hematology studies.
pylori system demonstrated a relative sensitivity of 91 percent in biopsy positive specimens, a relative specificity of 98 percent in biopsy negative specimens and a relative agreement of 95 percent using fingerstick specimens compared with ELISA.