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Test Code N.TBIL BILIRUBIN, TOTAL

Important Note

Protect from LIGHT. Direct exposure from sunlight can decrease bilirubin by fifty percent within one hour.

Methodology

Automated Chemistry Analyzer (Alinity)

Specimen Requirements

Specimen Type: Serum or Plasma
Container/Tube: SST or Lithium Heparin
Specimen Volume: 1 mL (minimum 0.5)
Collection Instructions: 

  1. Allow specimen to clot completely if a serum tube (SST) was used.
  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube.
  3. Properly label tube with patient's name, DOB, requisition number and type of tube, i.e. LiHep or NaHep etc.
  4. Specimen should be protected from light.

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 6 days poured off in amber transport tube

Specimen Rejection

1. Hemolyzed samples

2. Non-light protected specimen

3. Unlabeled/mislabeled specimen

Maximum Laboratory Time

24 to 48 hours

Reference Ranges

Bilirubin, Total           mg/dL
Newborn         1.5 - 9.4
3 days         4.5 - 9.4
1 mos         0.3 - 1.2

Critical :    REFER TO LH-W CRITICAL VALUES POLICY

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82247