A -year-old man is hospitalized for symptomatic anemia and is receiving a transfusion of packed red blood cells. Thirty minutes into the transfusion, he develops acute-onset chills, severe flank pain, and shortness of breath. His temperature is 39.2°C (102.5°F), blood pressure is 85/50 mm Hg, and pulse is 120/min. The nurse notes that the urine in his Foley catheter bag has suddenly turned dark red. Arrange the following steps in the most appropriate chronological order for the acute management of this patient.
- 1Stop the blood transfusion immediately and disconnect the blood tubing from the patient
- 2Maintain intravenous access and initiate aggressive fluid resuscitation with 0.9% normal saline
- 3Send the remaining blood product, tubing, and newly drawn patient blood samples to the blood bank
- 4Administer intravenous vasopressors if the patient remains hypotensive despite adequate fluid resuscitation
Answer
The correct sequence for managing an acute hemolytic transfusion reaction is: 1) Stop the transfusion immediately, 2) Initiate aggressive intravenous fluid resuscitation, 3) Send the blood product and patient samples to the blood bank for testing, and 4) Administer vasopressors if refractory shock persists.
An acute hemolytic transfusion reaction (AHTR) is a life-threatening medical emergency classically presenting with the triad of fever, flank pain, and hemoglobinuria (dark urine), often complicated by hypotension. The management follows a strict algorithm. The absolute first step is to instantly stop the transfusion and disconnect the tubing to prevent any further administration of incompatible red blood cells. The second step is acute hemodynamic stabilization and renal protection; maintaining the IV line to push aggressive 0.9% normal saline boluses is necessary to treat shock and maintain a high urine output, thereby preventing free hemoglobin from precipitating in the renal tubules and causing acute kidney injury. Only after the patient is being actively stabilized should the third step occur: sending the remaining blood product, tubing, and fresh patient blood samples to the blood bank for a clerical check, direct antiglobulin (Coombs) test, and repeat crossmatch to confirm the diagnosis. Finally, if the patient's hypotension is refractory to fluid resuscitation, intravenous vasopressors are initiated to maintain mean arterial pressure.
Step-by-Step Solution
Key Concept
Algorithmic management of acute hemolytic transfusion reactions (AHTR)