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Fetomaternal Haemorrhage Quantitation by Flow Cytometry
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General
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Clinical Use:
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Estimation of Fetomaternal Haemorrhage (FMH) was traditionally performed by the acid-elution method of Kleihauer and Betke. However, there is now a HbF based flow cytometric method for FMH quantitation in the ante- and post-natal settings.
This method and the Kleihauer test both detect HbF found in fetal red cells.
FMH testing may be performed up to 72 hours after the event but this may delay the administration of additional doses of RhD-Immunoglobulin outside of the recommended 72 hours. |
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Availability:
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Samples are tested routinely during the testing laboratory's hours of operation. |
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Aliases/Synonyms:
| Feto Maternal Haemorrhage, Feto-Maternal Haemorrhage, FMH, Foeto Maternal Haemorrhage, Foeto-Maternal Haemorrhage, Foetomaternal Haemorrhage, |
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Code:
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FMH |
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Handling Instructions (to laboratory):
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Send sample chilled. |
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Hyperlink:
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Reference Interval:
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Results of zero to 2mL fetal cells are reported as <2 mL
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Collection Requirements
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Container:
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EDTA (LAVENDER), |
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Sample Type:
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See container |
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Minimum Collection Volume:
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Collection Instructions:
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Sample should be collected a minimum of 15 minutes after placental separation and preferably within 2 hours. |
Processing Requirements
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Alternate Containers:
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EDTA (LAV9) |
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EDTA (PINK) |
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Processing Instructions:
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For KEMH patients order a Kleihauer Test |
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Minimum Assay Volume:
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Stability:
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72 hours chilled |
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Transport Instructions (to testing laboratory):
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Send sample chilled. |
Testing Locations
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Performed at:
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Section
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Department
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Site
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Contact Phone
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| Transfusion |
Haematology |
QEII Medical Centre |
6383 4018 |
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Last Updated : 02-10-2024 08:22 |