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Test Code LAB3256 Liver Transplant Listing Bilirubin Levels

Clinical System Name

Liver Transplant Listing Bilirubin Levels

Synonyms

Bilirubin
Total Bilirubin
TXP TBILI

Sample Requirements

Specimen:  Whole Blood

Container(s): Lt. Green/Mint Top Lithium Heparin, Lt. Green/Lithium Heparin Microtainer, Gold SST, Gold Microtainer, Dark Green/Sodium Heparin, Red

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL 

 

Note: Protect sample from light. In-patients: wrap paper towel around tube and seal with one piece of tape. Off-site: wrap tube in foil. Specimen stable under fluorescent lighting for up to 4 hours.This test is only available for liver transplant patients. The test includes Bilirubin Unconjugated, Conjugated, Delta & Total. 

Processing Instructions

Reject due to: Marked hemolysis, prolonged light/UV exposure, age of specimen

Spin: Y

Aliquot: Y

Storage location:  CORE 5 Refrigerator

 

Off-site collection: Avoid hemolysis. Protect sample from light. Specimen should be centrifuged within 2 hours of collection. Spin blood and transfer serum or plasma to plastic tube, wrap tube in foil, and refrigerate or freeze. Specimen stable under fluorescent lighting up to 4 hours.

Note: samples received at North Clinic laboratory will be sent stat to main lab for testing.

Stability

Specimen Type Temperature Time
Plasma or Serum RT

≤ 4 h
Plasma or Serum

2-8 C

≤ 7 d
Plasma or Serum

-20 C or -70 C

≤ 180 d

Availability

STAT Performed TAT
Y 24/7 1 h

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Core Lab Chemistry

Phone Number: 206-987-2617 (Client Services)

CPT Codes

82248, 82247, 84311

Methodology

Method: Colorimetric by Vitros 4600

Analytical Volume:  0.02 mL + 0.03 mL dead space

 

Method is affected by exposure to UV light, gross hemolysis, and lipemia (very slight lipemia OK).

Reference Range

 

Unconjugated (BU)

Conjugated (BC)

 Total bili  Delta bili (calculated)

Neonate (0 - 1 month)

0.6 - 10.5 mg/dL

0.0 - 0.6 mg/dL

    
2 weeks- adult     0.1-1.3 mg/dL 0.0-0.2 mg/dL

1 month - adult

0.0 - 1.1 mg/dL

0.0 - 0.3 mg/dL

    

Critical level for neonates up to one month

≥ 20.0 mg/dL

≥ 20.0 mg/dL

≥ 20.0 mg/dL

  

Critical Values

0-1 M

≥ 20.0 mg/dL