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Laboratory Information

Test Name

Bilirubin (Conjugated)

External Price (excl. GST)

Specimen Collection

Adult Specimen

Heparin (light green), SST(gold)"T-" labs SST (gold)

Paediatric Specimen

0.3ml Heparin (light green) or plain(red). Rural Waikato Labs 0.3 ml Plain (red)

Test Information

Department

Biochemistry

Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

3 hrs

Method

Cobas Pro, Rural Waikato Labs: Vitros XT7600

Unit of measurement

umol/L

Reference interval

0 - 28 days: Direct Bilirubin reference interval: < 20 umol/L or < 10% of total bilirubin when total bilirubin is > 200 umol/L

> 28 days : < 5 umol/L

Uncertainty of measurement

Waikato - 15% Rural Waikato Labs - 20%

Diagnostic Use Or Instructions

Pathological significance: In normal bilirubin metabolism the bilirubin produced as a result of the breakdown of haemoglobin from red cells is conjugated in the liver and excreted in the bile to the intestine.

Any blockage of the bile system or failure of excretion of bilirubin post conjugation will result in raised levels of this fraction of bilirubin in the blood.

Minimum Volume

0.1 mL heparin plasma or serum, protect from light

Electronic Information

Registration Code

BILC

HL7 mapping code

$BILC

LOINC Code

14629-0

Laboratory Test Reference Guide