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General
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Clinical Use:
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To assess foetal maternal haemorrhage in the maternal circulation and, in Rh(D) Negative women, to determine the need for additional doses of prophylatic RhD Immunoglobulin following delivery of an Rh(D) Positive baby and/or following events or procedures that are known to increase the risk of FMH occurring after the first trimester. |
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Availability:
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Samples are tested routinely during the testing laboratory's hours of operation.
Please contact testing laboratory for urgent requests. |
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Code:
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KB |
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Handling Instructions (to laboratory):
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Send sample ambient. |
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Hyperlink:
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Reference Interval:
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Results of zero to 2mL foetal red cells are reported as <2mL.
Results above this are reported as mL of foetal red cells detected and are automatically referred for more accurate determination of FMH by flow cytometry
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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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The sample should ideally be collected between 15 minutes and 2 hours after placental separation. |
Processing Requirements
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Alternate Containers:
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EDTA (PINK) |
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Processing Instructions:
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Test is routinely performed on KEMH patients only unless urgent.
For urgent FMH that cannot wait for the flow cytometry to be performed, samples may be sent to KEMH for an urgent Kleihauer Test provided KEMH is contacted prior by phone. |
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Minimum Assay Volume:
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Stability:
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72 hours ambient |
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Transport Instructions (to testing laboratory):
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Send sample ambient. |
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 |
King Edward Memorial Hospital |
6458 2748 |
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Last Updated : 18-12-2023 08:00 |