Sign in →

Test Code CATTH Cold Agglutinin Titer, Serum

Useful For

Detection of cold agglutinins in patients with suspected cold agglutinin disease

Special Instructions

Method Name


Red Cell Agglutination at 4 Degrees C

Reporting Name

Cold Agglutinin Titer

Specimen Type

Serum Red

Advisory Information

For diagnosis of Mycoplasma pneumoniae infection, see MYCPN / Mycoplasma pneumoniae Antibodies, IgG and IgM, Serum.

Specimen Required

Container/Tube: Red top

Submission Container/Tube: Aliquot tube

Specimen Volume: 4 mL

Pediatric: 2 mL

Collection Instructions:

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

2. Allow specimen to clot at 37° C.

3. Centrifuge at 37° C and separate serum from red cells immediately after blood clots.

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

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred)

Reject Due To








Serum gel tube


Reference Values


Day(s) and Time(s) Performed

Monday through Friday, Sunday; Continuously

Analytic Time

1 day

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
CATTH Cold Agglutinin Titer 14658-9


Result ID Test Result Name Result LOINC Value
CATTH Cold Agglutinin Titer 14658-9


New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (T576) is available in Special Instructions.