Test Overview
Test Methodology

Hemolysis

Test Usage

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.

Reference Range *

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Friday
Analytic Time

3 - 6 days

Soft Order Code
MMLR
Synonyms
  • Biphasic Hemolysin
  • PCH Screen
  • DL INT
  • PCH Screen
  • Biphasic Hemolysin
  • DONATH-LANDSTEINER INTERPRET.
  • DONATH-LANDSTEINER TEST
  • DL INT
  • DONATH-LANDSTEINER INTERPRET.
  • DONATH-LANDSTEINER
  • DONATH-LANDSTEINER INTERP
Laboratory
Sendout
Reference Laboratory
Mayo (ARUP 0013039)
Section
Special Testing
Test Updated
Update Type
Specimen collection or handling and/or storage changed
Specimen Requirements
Collection Instructions

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.

Special Handling

Place specimen in 37°C warm sand or waterbath immediately. See Collection Instructions below.

Normal Volume
3 mL serum
Minimum Volume
1 mL serum
Storage Temperature
R
Additional Information
Billing
CPT Code
86940, 86941
Resources