Test Overview
Test Usage

To follow the course of antibody formation in cases of potential maternal-fetal blood incompatibility.

Reference Range *

Titer of 32 or rising titer.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Titers do not always reflect the condition of an unborn child. There is an inherent error of one tube dilution in test performance.

Test Details
Days Set Up
Monday - Friday, 8:00am - 4:00pm
Analytic Time

4 - 72 hrs

Soft Order Code
PNTTR
MiChart Code
ANTIBODY TITER INTERPRETATION
Synonyms
  • Blood Type, Antibody Titer, Prenatal
  • Prenatal Antibody Titer
  • Red Cell Antibody Titer, Prenatal
  • Rh Titer
Laboratory
Blood Bank
Section
Blood Bank
Specimen Requirements
Collection Instructions

Antibody Identification must be performed prior to titration; please send a copy of Antibody Identification results if this test has been performed at your institution. Collect specimen in a pink top tube. Centrifuge, aliquot plasma into a plastic vial and refrigerate up to 72 hours or freeze. Specimens are unacceptable if collected in serum separator tube, contaminated, or grossly hemolyzed. Specimens sent for Blood Bank testing cannot be split for use by other laboratories.

Alternate Specimen
IN-HOUSE: Lavender top tube (intact specimen) may be substituted for Pink top. All other specimen types are unacceptable. MLABS: Pink top tube (intact specimen) is preferred; the following are acceptable: lavender top (glass or plastic), red top (glass only), plasma aliquot from pink or lavender top, serum aliquot from red top. Plastic red top tubes will be rejected without exception. [9/03; rev 4/04]
Contraindications
Test is not indicated if patient has negative serum antibody screening test, antibody identified is not implicated in hemolytic disease of newborn (P1, Lewis, I, H), or antibody is determined to be IgM.
Normal Volume
6 mL whole blood
Storage Temperature
R
Billing
CPT Code
86886
Fee Code
21263
NY State Approved
No