Glossary IAT Abbreviation for Indirect Antiglobulin Test. Back to Glossary List Transfusion News is sponsored by Cold Stored Platelets for Severe Trauma Patients Impact of Implementation of Individual Donor Assessment Liberal Transfusion Thresholds for Patients with Acute Brain Injury RBCs Regulate Hemostasis Through Platelet-Dependent and -Independent Mechanisms Liberal Transfusion Threshold of 9-10 g/dL for Patients with Myocardial Infarction Visit Transfusion News » Follows Facebook 14.6k Followers