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Test Code FMBNY Fetomaternal Bleed, New York, Blood

Reporting Name

Fetomaternal Bleed, New York

Useful For

Determining the volume of fetal-to-maternal hemorrhage for the purposes of recommending an increased dose of the Rh immune globulin

 

This test is used only for specimens collected in New York state.

Method Name

Flow Cytometry

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Whole Blood EDTA


Ordering Guidance


This test is only available for patients from New York State. For patients from other locations, order FMB / Fetomaternal Bleed, Flow Cytometry, Blood.

 

This test is for the detection of fetal bleed, it should not be used to detect the hereditary persistence of fetal hemoglobin (HPFH) or to detect fetal maternal hemorrhage in a mother with HPFH. For HPFH diagnosis, order HBEL1 / Hemoglobin Electrophoresis Evaluation, Blood.



Shipping Instructions


Specimen must arrive within 5 days (preferably 24-72 hours) of collection. The New York State Department of Health recommends that samples are tested within 30 hours of collection.



Specimen Required


Container/Tube: Lavender top (EDTA)

Specimen Volume: Full tube

Collection Instructions:

1. Do not centrifuge.

2. Invert several times to mix blood.

3. Send specimen in original tube. Do not aliquot as aliquoting into or out of a sample tube can adversely affect test results.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole Blood EDTA Refrigerated (preferred) 5 days
  Ambient  5 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
Clotted blood Reject

Reference Values

≤1.5 mL of fetal red blood cells in normal adults

Day(s) Performed

Monday through Sunday

CPT Code Information

88184-Flow cytometry; cell surface cytoplasmic

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FMBNY Fetomaternal Bleed, New York 75308-7

 

Result ID Test Result Name Result LOINC Value
28204 Mother's Rh 10331-7
28202 Fetal-Maternal Bleed 55730-6
28203 Rh Immune Globulin 55731-4
28246 Remarks 48767-8

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

Report Available

Same day/1 day

NY State Approved

Yes