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HelpCatalog ID Emer Trans Emergency Transfusion
CPOE Test Name
No CPOE order. Call Blood Bank and request uncrossmatched blood. See Massive Transfusion Protocol
Synonyms
Uncrossmatched Blood with or without blood sample submitted. See MTP Massive Transfusion Protocol
Specimen Requirements
Fenwal Label. Requires Full Name, Medical Record Number, date and phlebotomist initials/Cerner ID. Pink top (EDTA) tube.
Storage and Transport
Send to Blood Bank
Causes for Rejection
Improper labeling; wrong tube; gross hemolysis; insufficient volume
Interpretation
A compatible crossmatch and negative antibody screen result indicates that testing did not identify any antibody or incompatibility. An incompatible crossmatch result indicates incompatibility between the donor and recipient which may indicate a clinically significant antibody. Further testing would be indicated. The immediate spin crossmatch may provide evidence of ABO incompatibility.
Test Consists
Expediting appropriate RBCs as quickly as possible. If a blood sample is submitted ABO, Rh type, and antibody screen tests initiated first, followed by the immediate spin crossmatch procedure. All blood that is transfused uncrossmatched must have justification of transfusion documentation and signature of ordering physician. This is an FDA requirement.
Turn Around Time
Crossmatch (Red Blood Cells)
Routine: 2 – 4 hours Urgent: 1 – 2 hours
Emergent: 30 minutes
Emergency, uncrossmatched: 15 minutes
Methodology
Antibody Screen – Indirect Coombs phase; Crossmatch – Immediate spin
CPT / HCPCS Code
86922, 86920
Reference Ranges
Antibody screen results positive requires additional test (panel(s), antigen typings, and other specialized test) to identify reason. Crossmatch results incompatible requires specialized testing and time to identify the cause. A Transfusion Risk form would be indicated in an emergency situation to release incompatible blood signed by the recipient’s physician and with MD approval and notification.
Performing Lab
Blood Bank BI-1230 721-2731