Haptoglobin
Label Mnemonic: HAPT
Epic Lab Code: LAB89
Downtime Form: A-1a General Laboratory Requisition
Chemistry
6240 RCP
356-3527
Specimen(s):
Plasma
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 Microtainer®
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
30-200 mg/dL
Test Limitations:
Rheumatoid factors less than 250 IU/mL do not interfere.

A high-dose hook effect may occur at haptoglobin concentrations above 1200 mg/dL.

Hemolysis: No significant interference up to an H index of 150 (approximate hemoglobin concentration: 150 mg/dL).

Lipemia: No significant interference up to an L index of 200 (approximate triglycerides concentration: 400 mg/dL). Note there is poor correlation between turbidity and triglyceride concentration.

Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL).
Methodology:
Immunoturbidimetric
CPT Code:
83010