After stopping a blood transfusion suspected of causing a hemolytic reaction, what action requires intervention?

When a blood transfusion is suspected of causing a hemolytic reaction, it is critical to prioritize patient safety and appropriate medical protocols. Initiating the transfusion of another unit of blood product immediately after a suspected hemolytic reaction is not only inappropriate but also dangerous. Hemolytic reactions indicate that the patient's body is reacting adversely to the transfused blood, and proceeding with another transfusion can exacerbate the situation, potentially leading to severe complications or further harm.

In such cases, the proper course of action includes stopping the transfusion, ensuring the patient is stable, and addressing the symptoms of the reaction. Other steps, such as sending a blood specimen to the laboratory, collecting a urine specimen, and initiating an infusion of 0.9% sodium chloride, are appropriate responses to manage the suspected reaction and assess for hemolysis. These actions help in monitoring the patient's condition and facilitating further investigation and treatment.