Xenotransfusion (S/F)

Xenotransfusion is a medical practice defined as a blood transfusion in which the donor is not the same species as the recipient; that is, a blood transfusion between two different species. These procedures are only performed under rare circumstances: the International Xenotransplantation Association has set out guidelines to determine whether the procedure is medically necessary and safe by analyzing the risks versus benefits, determining whether more conventional alternatives are available, and minimizing the risk of infection. First theorized by the monk Dom Robert Desgabets in 1658, the first xenotransfusion was performed between a lamb and a 15-year-old boy by physician Jean-Baptiste Denis and surgeon Paul Emmerez. The procedure was successful. Due to the biologically complicated nature of the procedure, xenotransfusion is relatively rare.

Carmen Russo of The Slate Group has written an article analyzing the realism of the xenotransfusion depicted in 2018’s Jurassic World: Fallen Kingdom. According to veterinarian Dr. Katherine Quesenberry, the procedure shown in the film is plausible and demonstrated fairly realistically, although it would only be safe to perform between the two dinosaur species once. A second xenotransfusion between the same two species would run the risk of severe adverse reaction or death in the recipient. This is one of the reasons that xenotransfusion is a rarely-performed emergency procedure.