Bilirubin, Direct

Useful For

Bilirubin is an organic compound formed by the reticuloendothelial system during the normal and abnormal destruction of red blood cells. Measurements of bilirubin are used in the diagnosis of liver disease, in the detection of hemolytic anemia, and to evaluate degrees of jaundice.

Method Name



Bilirubin, Direct; D. Bili, Bilirubin, Direct

Specimen Required

Lithium heparin plasma separator tube is preferred but serum separator tube (SST) is also acceptable. If using an SST, please allow 20 minutes after collection for specimen to clot before centrifugation. All specimens must be centrifuged within four hours of collection.

Specimen Minimum Volume

0.5 mL of blood

Specimen Stability Information

If protected from light, specimen is stable for 24 hours refrigerated.

Performing Laboratory

Glens Falls Hospital Chemistry and Special Chemistry Department

Reference Values

0.0 – 0.3 mg/dL

Day(s) and Time(s) Performed

As ordered. Turn around time four hours.