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TITR1
RBC ANTIBODY TITER

Test Code TITR1 
Test RBC ANTIBODY TITER 
Methodology Titration-Serial Dilution 
Description Useful for monitoring changes in strength of clinically significant RBC antibodies during pregnancy. 
Specimen Draw blood in lavender/pink-top (EDTA) tube(s). Send 7.0 mL of EDTA whole blood tubes.
NOTE: Two 7.0 mL tubes whould be submitted for the initial titer sample. Follow-up titer samples only require one 7.0 mL tube.

NOTE: TUBE MUST BE LABELED WITH FULL NAME OF PATIENT (LAST, FIRST [DO NOT USE NICKNAMES]), DATE OF BIRTH AND/OR IDENTIFICATION NUMBER, DATE OF COLLECTION, AND INITIALS OF PERSON DRAWING SPECIMEN. 

Reference Values Not applicable
A positive result will be reported as the reciprocal of the highest dilution at which macroscopic agglutination (1+) is observed. 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 86886  Antibody titer, each