Bilirubin - Blood

Source

Blood

Mnemonic

Total & Direct Bilirubin: BILTD
Total Bilirubin: BILT
Direct (Conjugated) Bilirubin: BILD

Specimen Requirements

1 x 5 mL light green (mint) top PST tube. Gold top SST tube is also acceptable.

0.2 mL heparinized plasma or serum

Minimum Blood Volume for Patients less than 45 kg (100 lb) Including Neonates and Pediatrics

Protect infant collections from light by using red top amber coloured microtainer or green top microtainer with amber sleeve cover.

Specimen Handling

Additional Information

If Indirect Bilirubin is required, make a note on the requisition.
Indirect Bilirubin is a calculated result of Total Bilirubin and Direct (Conjugated) Bilirubin.

Bilirubin can also be performed on fluids (test mnemonic FLBILI)

Testing Location

Chemistry-All Sites

Testing Frequency

Daily

Alternate Name(s)

Conjugated (Direct) Bilirubin

Reference Interval

Total Bilirubin:
Age	Male	Female	Units
0-1 day	0-100	0-100	µmol/L
1-2 days	0-150	0-150	µmol/L
3-14 days	0-220	0-220	µmol/L
15-365 days	0-23	0-23	µmol/L
1-4 years	0-10	0-10	µmol/L
5-9 years	0-14	0-14	µmol/L
10-14 years	0-19	0-19	µmol/L
15-150 years	0-24	0-20	µmol/L

Direct (Conjugated) Bilirubin (Male/Female):

0-14 days 0 - 20 µmol/L

15 days - 150 years 0 - 7 µmol/L

Check here for critical values

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