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Test Code DBIL Bilirubin, Direct, LAB52


Jendrassik-Grof End point with Sample Blank

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Green-top (lithium heparin) tube 

Acceptable:  Gold-top serum gel tube, plain red-top tube, or lavender-top (EDTA) tube

Specimen Volume: 0.1 mL of plasma or serum

Stability: Samples can be kept at 2 – 8°C for 5 days. For longer storage, samples may be frozen

                at -20°C for up to 3 months.

Collection Instructions: Bilirubin is photosensitive. Specimen must be protected from light.


Reference Values

0.0-0.2 mg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

Measurements of bilirubin are used in the diagnosis of liver disease, in the detection of hemolytic anemia, and to evaluate degrees of jaundice.