![]() No transfusions in the past three months.(neonatal extended expiry) or those patients who have extended expiry crossmatching completed prior to having planned surgery (extended expiry) Extended expiryĮxtended expiry allows patients having a planned admission for spinal, craniofacial or cardiac surgery to have a blood group and antibody screen performed and remain valid for 30 days before their planned date of surgery.įor the the extended expiry blood group antibody screen to remain valid, certain conditions must be met prior to sampling and maintained throughout the 30 day period. The only exceptions to the 72 hour rule are some neonates and infants during the first four months of postnatal life This internationally accepted safeguard is used to prevent a transfusion reaction in patients who form antibodies to foreign red cellĪntigens in response to pregnancy or transfusion. The 72 hour rule also applies whenever a patient has been transfused or is/has been pregnant within the last 3 months. If a unit of red cells is ordered in EMR without a current blood group and antibody screen, a prompt will appear with the option to order a blood group and antibody screen at the time of ordering the red cells. The time and date of collection of the cross match specimen is indicated in the Electronic Medical Record (EMR). A fresh blood group and antibody screen will be required for any units not commenced within the 72 hour period. If you know your patient has special transfusion requirements, a conversation can still be had with the blood bank to discuss individual transfusion requirements.Ī blood group and antibody screen expires 72 hours after collection. Blood bank will then be aware of the potential requirements for blood products and can make provisions as necessary. The date and type of surgery or expected date of transfusion can be outlined in the clinical notesįield of the order. If a patient is having a planned surgery where blood loss is expected, or they may require a planned RBC transfusion, an order for a blood group and antibody screen should be made. Patient's who have previously had clinically significant red cell antibodies detected require antigen negative blood and full serological crossmatching. The patient's current blood group must agree with any previous record of the patients group. Correlating with previous transfusion and blood group records. ![]() For patients with multiple antibodies this work can take several hours to complete. For patients who have "red cell antibodies detected", further laboratory work is required to identify the specificity of the antibody, to type the patient and donor units in order to provide specific antigen negative blood and to perform a full serologicalĬrossmatch.For patients who have "no red cell antibodies detected", compatible units are selected and issued electronically.Involves a red cell antibody screen to detect red cell antibodies.Determines the ABO and Rh(D) group of the recipient.Pretransfusion compatibility testing prior to transfusion involves the following Pretransfusion testing Correctly identifying the patientĭuring collection of the pretransfusion sample is vital in avoidingĪll specimen collection and labeling must be done in accordance with Theīlood transfusion - fresh blood products procedure. Every patient receiving a fresh blood product needs a valid pretransfusion compatibility testing/blood group and antibody screen performed at the Royal Children's Hospital (RCH) prior to blood transfusion.
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