Technique of Transfusion By Ravindra Sarode, MD, The University of Texas Southwestern Medical Center Reviewed / Revised Feb 2022 | Modified Sep 2022 View Patient Education CAUTION: Before transfusion is started, consent should be obtained, and the patient's wristband, blood unit label, and compatibility test report must be checked at the bedside to ensure that the blood component is the one intended for the recipient.