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Test Code NBILI Bilirubin, Neonatal

Useful For

Elevated serum bilirubin concentrations are associated with the development of yellow staining of the brain, kernicterus, and brain injury resulting in spasticity, hearing loss, and mental retardation. 

Synonyms/Keywords

NBili, Neonatal Bilirubin

Specimen Requirements

Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No Plasma/Serum Lithium-heparin Plasma Separator (PST), Serum Separator Tube (SST) Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT),
Red or Green Microcollection tube
0.1 mL 0.1 mL 0.1 mL serum or plasma from 0.3mL whole blood

Collection/Processing Instructions

Protect from light.


Samples collected in a RTT or GTT must be removed from cells within one hour for storage or transport.  

Specimen Stability Information

Specimen Type Temperature Time
Plasma/Serum Refrigerate 2 days
Frozen >2 days

Rejection Criteria

Samples not protected by light
Significantly hemolyzed samples cannot be assayed for Direct Bilirubin
Drug Eltrombopag: interferes with the total bilirubin assays.

Test Components

Total Bilirubin, Direct Bilirubin


Indirect Bilirubin will be calculated

Interferences

Hemolysis will falsely decrease Direct Bilirubin.

Reference Range Information

Performing Location Reference Range
All Performing Sites Total:      0-14 days:  ≤11.0 mg/dL
Total: 15 days-<1yr:    ≤0.7 mg/dL Total:           1-<9yr:    ≤0.4 mg/dL
Direct:    ≤14 days:    ≤0.5 mg/dL Direct:    ≥15 days:    ≤0.3 mg/dL
See Critical Value List for list of current critical values.

Marshfield Labs Performing Department

Marshfield Labs Chemistry

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Beaver Dam Monday through Sunday  Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Weston Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Eau Claire Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Park Falls Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Ladysmith  Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Rice Lake Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Marshfield Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Minocqua Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Neillsville Monday through Sunday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU
Stevens Point Monday through Saturday Less than 2 hours Diazonium Salt/DPD Endpoint Assay/ Beckman AU

CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
82247   1 Bilirubin, total   
82248   1 Bilirubin, direct  

Outreach CPT Codes

CPT Modifier
(if needed)
Quantity Description Comments
82247   1 Bilirubin, total   
82248   1 Bilirubin, direct  

Ordering Applications

Ordering Application Description
Cerner Bilirubin Total Pediatric