Sample Requirements: 6ml EDTA
Comments: RH neg pregnant females after 20 weeks gestation.
Post delivery samples should be taken 30-45 min after delivery.
RH pos females – Consultant request only; if >20 weeks & RTA/assault & IUD of unknown cause.
Key Factors known to affect Test Performance or Interpretation:
  • Samples will be rejected if received more than 48 hours post phlebotomy.
  • It is not possible to provide accurate blood grouping on clotted samples or haemolysed samples, including those stored at inappropriate temperatures.
  • Small samples must be processed manually and these will only be accepted for young children.
Turnaround Time: 24 – 48 hours
The published turnaround times are applicable to normal working hours only. All routine samples received outwith normal working hours will be processed on the next working day.
Location: Blood Transfusion