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Test Code ABTIR Antibody Titer, Blood and Serum


Shipping Instructions


Specimen must arrive within 72 hours of collection.



Specimen Required


Blood cells, plasma, and serum are required.

Supplies: Sarstedt Aliquot Tube, 5mL (T914)

Specimen Type: Plasma/Blood

Collection Container/Tube: 6-mL Pink top (EDTA)

Submission Container/Tube: Plastic vial

Specimen Volume:

3 mL Plasma

3 mL Red blood cells (RBCs)

Collection Instructions:

1. Centrifuge and aliquot plasma into plastic vial.

2. Label specimens as EDTA plasma or EDTA RBCs as appropriate.

3. Send both tubes.

 

Specimen Type: Serum/Blood

Collection Container/Tube: 10-mL Red top

Submission Container/Tube: Plastic vial

Specimen Volume:

5 mL Serum

5 mL RBCs

Collection Instructions:

1. Centrifuge and aliquot serum into a plastic vial.

2. Label specimens as serum or clotted RBCs as appropriate.

3. Send both tubes.


Reflex Tests

Test ID Reporting Name Available Separately Always Performed
ABIDR Antibody Identification, RBC Yes No

Testing Algorithm

If the antibodies detected are too weakly reactive to titer, this test will be canceled and the antibody identification will be ordered and performed at an additional charge.

Method Name

Hemagglutination

Specimen Type

Varies

Specimen Minimum Volume

Blood: 6 mL EDTA
Pediatric: 2 mL Serum

Specimen Stability Information

Specimen Type Temperature Time
Varies Ambient (preferred) 4 days
  Refrigerated  4 days

Reject Due To

No specimen should be rejected.

Clinical Information

Some maternal IgG alloantibodies to red blood cell antigens will cross the placenta and cause hemolysis of antigen-positive fetal red blood cells. The resulting fetal anemia and hyperbilirubinemia can be harmful or possibly fatal to the newborn.

Reference Values

Negative

If positive, result will be reported as the reciprocal of the highest dilution at with macroscopic agglutination (1+) is observed.

Day(s) Performed

Monday through Friday, Sunday

Report Available

1 to 2 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86886

86870 (if appropriate-per panel tested)

86860 (if appropriate)

86880 x 3 (if appropriate)

86905- (if appropriate)

86978 (if appropriate)

81403 (if appropriate)-Internal only