Test Catalog

Test ID: CATR    
Cold Agglutinin Titer, Serum

Specimen Type Describes the specimen type validated for testing

Serum Red

Ordering Guidance

The cold agglutinins test is not specific for Mycoplasma pneumoniae and is not recommended to diagnose M pneumoniae infections. See MYCPN / Mycoplasma pneumoniae Antibodies, IgG and IgM, Serum.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Collection Container/Tube: Red top

Submission Container/Tube: Aliquot tube

Specimen Volume: 4 mL

Pediatric Volume: 1 mL

Collections Instructions:

1.     Use a warm pack to keep specimen at 37 degrees C prior to and after collecting.

2.     Allow specimens to clot at 37 degrees C.

3.     Centrifuge at 37 degrees C and separate serum from red cells immediately after blood clots, or within one hour of collection.

4.     Do not refrigerate prior to separation of serum from red cells.



If not ordering electronically, complete, print, and send a Benign Hematology Test Request Form (T755) with the specimen.

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

1 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
Serum RedRefrigerated (preferred)