The Canadian Obstetrical Pediatric Transfusion Network (COPTN) performed National survey in 2017/18 regarding perinatal practices. Results showed that testing practice across Canada was highly variable. A group of multidisciplinary national experts came together to provide consensus guidance on the optimal indications and timing for perinatal, postnatal and neonatal immunohematology testing for prevention and diagnosis of HDFN.
Canadian Consensus Guidelines for Perinatal Testing