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Test Code 0213496 Haptoglobin, Serum

Additional Codes

Mayo Test ID
HAPT

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Confirmation of intravascular hemolysis

Method Name

Nephelometry

Reporting Name

Haptoglobin, S

Specimen Type

Serum


Specimen Required


Container/Tube: 

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  14 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross OK

Other

NA

Reference Values

30-200 mg/dL

Interpretation

Absence of plasma haptoglobin may therefore indicate intravascular hemolysis. However, congenital anhaptoglobinemia is common, particularly in African-Americans. For this reason, it may be difficult or impossible to interpret a single measurement of plasma haptoglobin. If the assay value is low, the test should be repeated after 1 to 2 weeks following an acute episode of hemolysis. If all the plasma haptoglobin is removed following an episode of intravascular hemolysis, and if hemolysis ceases, the haptoglobin concentration should return to normal in a week.

 

Low levels of plasma haptoglobin may indicate intravascular hemolysis.

Day(s) and Time(s) Performed

Monday through Saturday; 3 p.m.

Analytic Time

1 day

Specimen Retention Time

14 days

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

83010

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HAPT Haptoglobin, S 46127-7

 

Result ID Test Result Name Result LOINC Value
HAPT Haptoglobin, S 46127-7