<prompt> Which of the following complications is likely to result after several units of blood have been transferred?Metabolic alkalosisMetabolic acidosisRespiratory alkalosisRespiratory acidosis  <response>: Massive Transfusion is defined as the need to transfuse one to two times the patients normal blood volume or 50 of blood volume within 3 hours.nn In a normal adult, this is equivalent to 10-20 units. Most common abnormality is metabolic alkalosis. It results from the conversion of citrate present in stored blood and lactate accumulated due to hypoperfusion to bicarbonate. 