One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube.
Handling:
Allow to clot, centrifuge and separate serum from cells within 2 hours. Refrigerate.
Stability:
8 days refrigerated at 2-8° C, or 1 year frozen if frozen within 24 hours of collection. Do not allow to thaw.
Standard Volume:
1 mL serum.
Minimum Volume:
0.5 mL serum.
Transport:
Refrigerated.
Comments:
Haptoglobin measurement may aid in the diagnosis of hemolytic diseases related to the formation of hemoglobin-haptoglobin complexes and certain kidney diseases.