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Worcestershire Acute Hospitals NHS Trust
Kleihauer Test (Estimation of Foetal Maternal Haemorrhage)
CategoryBlood Transfusion
Request form
Please complete Kleihauer section of the blood transfusion request form. Ensure that you provide gestation if an antenatal request or baby details if a delivery sample.
Test information
Kleihauer results which are greater than 2ml bleed will be referred to reference centre for confirmation.
Must be done within 72 hours of the sensitising event
Tube type
3ml purple top EDTA and 
6ml pink top EDTA sample
Pink EDTA tube
Minimum volume
TAT Inpatient
Normal turnaround is 24 hours
TAT GP/Outpatient
Normal turnaround is 24 hours
Referral lab
Local haematology
Page last updated: 11 January 2022