3 - 6 days
Looking to order a test?
We’ve provided helpful links to make ordering easy.Find a Requisition
All specimens should be accompanied by a requisition.Submitting Specimens
Learn about how to properly label and where to ship specimens.Order Kits and Supplies
MLabs provides all the supplies necessary for the collection of specimens.Test FAQ
Visit our provider FAQ and learn about common questions to ordering tests.
To rule out the diagnosis of paroxysmal cold hemoglobinuria (PCH) in cases of hemoglobinuria, cold exacerbated hemolysis, unusual presentation of apparent warm or cold AIHA. A positive test is considered diagnostic for PCH.
Interpretive report provided.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
See Blood Bank entry for Michigan Medicine registered patients
Collect specimen in a red top tube. Maintain at 37 +/- 2 degrees C from the time it is collected until serum is separated from the cells. Within one minute of collection, place specimen into a 37+/- 2 degrees C incubator or waterbath. Leave specimen at 37 degrees C until clot retracts; after the clot retracts, remove serum from clot, centrifuge at room temperature, aliquot 5 mL cell free serum into a plastic tube and refrigerate. Please note on requisition or as a footnote in the computer that the specimen was processed at 37 degrees C.