Bilirubin, Direct
| Label Mnemonic: | BILD |
| Epic code: | LAB52 |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Chemistry
6240 RCP
356-3527
6240 RCP
356-3527
Specimen(s):
Plasma
Specimen
Instructions:
Avoid hemolysis and unnecessary exposure to light.
Collection Medium:
 |
| Plasma Separator Tube 4.5 mL |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood from light green top tube or ONE light green Microtainer® for pediatric patients
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
0.0 - 0.2 mg/dL
Test
Limitations:
Hemolysis leads to decreased direct bilirubin concentrations. Direct bilirubin will not be reported for specimens with severe enough hemolysis to significantly impact results (40 – 150 mg/dL hemoglobin depending on direct bilirubin concentration).
No significant interference up to lipemia levels greater than 750 mg/dL (Intralipid).
Methodology:
Spectrophotometric
Assay updated to Roche cobas® Bilirubin Direct Gen.2 on 10/08/2024.
CPT Code:
82248
See Additional Information:
Chemistry Pediatric Reference Ranges
Chemistry Pediatric Reference Ranges