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HelpTest Code ABTITR ANTIBODY TITRATION, BLOOD
Methodology
Semiquantitative Tube Titer
When a clinically significant antibody has been identified in a pregnant woman, this test is used to determine antibody concentration and to monitor changes in antibody levels throughout the pregnancy.
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Pink-Top Tube
Container/Tube: 2 (6 mL) Pink-top (EDTA) “crossmatch” tube(s)-Plain, red-top tube or serum gel tube is not acceptable.
Specimen Volume: 12 mL of whole blood
Collection Instructions: Forward promptly in original tube(s).
Note: Include report of diagnosis and history of transfusions, pregnancy, and drug therapy.
Alternate:
Lavender-Top Tube
Container/Tube: Lavender-top (EDTA) tube(s)-Plain, red-top tube or serum gel tube is not acceptable.
Specimen Volume: 12 mL of whole blood
Collection Instructions: Forward promptly in original tube(s).
Note: Include report of diagnosis and history of transfusions, pregnancy, and drug therapy.
Day(s) Test Set Up
Monday through Sunday
Reference Values
Results are reported as the reciprocal of the highest dilution of serum at which agglutination is observed.
A titer ≥16 is considered significantly elevated.
Performing Laboratory
Logan Health Medical Center Laboratory
Test Classification and CPT Coding
86886
Specimen Transport Temperature
Refrigerate