Test Overview
Hemolysis
To rule out the diagnosis of paroxysmal cold hemoglobinuria (PCH) in cases of hemoglobinuria, cold exacerbated hemolysis, unusual presentation of apparent warm or cold autoimmune hemolytic anemia (AIHA). A positive test is considered diagnostic for PCH.
Interpretive report provided under Immunohematology Consult.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
1 Day
Testing time is 5 hours for initial result. Blood Bank Pathologist performs a clinical review found in the Immunohematology Consult Report.
Specimen Requirements
Collect samples and immediately store in 37 C warm sand for transport to Blood Bank.
Warm sand thermos is available in Chemistry.
See Donath Landsteiner Test for Outpatients
Collect samples and immediately store in 37 C warm sand for transport directly to Blood Bank.
Warm sand thermos is available in Chemistry.
Samples must be received in Blood Bank by 12 noon for same-day processing.
2 mL EDTA whole blood
1 mL EDTA whole blood
Store at 4 C after separating serum from cells.