Last Modified:
4/18/2024 7:34:10 AM
Medical Necessity Documentation:
Client Notes:
Patient Preparation:
Specimen Requirements:
4.0 mL Whole Blood EDTA
Collection Instructions:
Minimum Volume:
3.0 mL Whole Blood EDTA
Transport & Storage: Temperature/Stability:
Refrigerate
Rejection Criteria:
Gross hemolysis; bacterial or other contamination
Reference Range:
See Interpretive Report
Critical Ranges:
Test Comments:
Methodology:
Hemagglutination
Clinical Significance:
Determine the titer of isohemagglutinins (anti-A and/or anti-B) in serum; the absence of expected isohemagglutinins may suggest an immunological deficiency. This test is not recommended for the determination of immunodeficiency. Dependent upon a variety of factors, normal titers are >1:8.
The presence of cold agglutinins other than anti-A and anti-B may interfere with test interpretation. Newborns, infants younger than six months of age, and patients who have undergone immunosuppressive therapy may not demonstrate expected ABO isohemagglutinins.
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
3 to 5 days
Sites Performed:
LabCorp
PHL Test Code:
ISOH
EPIC Test Code:
LAB2781
Send Out Test Code:
29837
Alternate Test Names:
Anti-A Titer; Anti-B Titer; Isohemagglutinins
Included Tests:
ABO; Antibody screen; Anti-A titer; Anti-B titer;
CPT Coding:
86940
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