ABTIH - Specimen: Antibody Titer, Erythrocytes

Test Catalog

Test Name

Test ID: ABTIH    
Antibody Titer, Erythrocytes

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

The initial test performed is an antibody identification. If the antibody problem identified is not relevant in hemolytic disease of the newborn, or if titrations are not helpful, the titer will be cancelled and will be replaced by the antibody identification test. Depending upon the antibody identification results, additional tests, ie, monospecific direct Coombs, antibody elution, antibody absorption, and red cell antigen typing may be added and charged. A consultation service is offered, at no charge, regarding the clinical relevance of red cell antibodies.

Specimen Type Describes the specimen type validated for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Include report of diagnosis and history of transfusions and pregnancy. If some antibody panel work has been done, include copies of the work.


Specimen must arrive within 72 hours of draw.


Blood and serum are required.


Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA)

Specimen Volume: 7 mL

Collection Instructions: Spin down and separate plasma from cells. Send both tubes.


Specimen Type: Serum

Container/Tube: Red top

Specimen Volume: 10 mL

Collection Instructions: Spin down and separate serum from clot. Send both tubes.

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

Blood: 6 mL

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








Serum gel tube


Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
VariesAmbient (preferred)4 days
 Refrigerated 4 days