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Test Code GTAB Group, Type and Antibody Screen, Blood

Methodology

Direct and Indirect Agglutination

Reflex Testing: If antibody screen is positive, then antibody identification and antigen typing will be performed. Antibody titer may be performed on pregnant patients.

Performing Laboratory

Munson Healthcare Laboratories

Specimen Requirements

Note: For specimens collected for expected or potential transfusion, outpatients must be collected at a laboratory location capable of making wristbands.

 

Submit only 1 of the following specimens:

 

Preferred:

Container/Tube: Pink-top (EDTA) tube

Specimen Volume: 3 mL of whole blood in pink-top tube

Transport Temperature: Refrigerate
Collection Instructions: 1. Verify patient identity using two identifers prior to collection.

2. Hand label specimen directly from patient’s hospital wristband using indelible black ink. Legibly write the patient’s full name and medical record number, collect date and time, and collector’s initials. Forward promptly.

 

Alternate:
Container/Tube: Lavender- top (EDTA) tube, 7 ml size - Tall Lavender

Specimen Volume: 3 mL of whole blood in lavender-top tube
Transport Temperature: Refrigerate
Collection Instructions: 1.Verify patient identity using two identifers  prior to collection.

2. Hand label specimen directly from patient’s hospital wristband using indelible black ink. Legibly write the patient’s full name and medical record number, collect date and time, and collector’s initials.  Forward promptly.

Reference Values

Negative antibody screen

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

86900-ABO

86901-Rh

86850-Antibody Screen

86870-Antibody Identification (if appropriate)

86905-Antigen Typing (if appropriate)

86886-Antibody Titer (if appropriate)