T80.4

Clinical Causes: Receiving blood or blood products that do not match the recipient's Rh blood group, especially Rh-negative individuals receiving Rh-positive blood. Administration of blood products containing incompatible Rh antigens (such as C, c, D, E, e antigens) due to errors in blood typing or crossmatching. Repeated transfusions with incompatible blood increasing the risk of immune response. Failure to properly screen and match donors and recipients before transfusion procedures.

Key Symptoms: Fever and chills during or after transfusion. Back or flank pain. Dark urine or hemoglobinuria indicating hemolysis. Low blood pressure or shock in severe cases. Jaundice (yellowing of the skin and eyes) caused by rapid breakdown of red blood cells. Tachycardia (rapid heartbeat) and tachypnea (rapid breathing). General discomfort or feeling unwell.

Diagnosis Path: Diagnosis begins with a careful review of the patient's transfusion history and blood tests. Key diagnostic steps include: - Blood type and Rh factor testing to confirm the incompatibility. - Sample testing for Rh antigens (C, c, D, E, e) to identify specific mismatches. - Detection of hemolytic reactions through laboratory tests such as direct antiglobulin (Coombs) test. - Monitoring for signs of hemolysis and organ dysfunction following a transfusion reaction. - Additional tests may be performed based on presentation and clinical suspicion.

Treatment Protocols: Managing an Rh incompatibility reaction involves supportive care and addressing specific symptoms: - Immediate cessation of transfusion to prevent further hemolysis. - Administration of medications like antihistamines, corticosteroids, or epinephrine if allergic reactions occur. - Intravenous fluids to support blood pressure and hydration. - Treatment of anemia with blood transfusions from compatible donors if necessary. - Monitoring for signs of organ damage or hemolytic crisis. - Preventive measures in future transfusions including accurate blood typing and crossmatching. - In severe cases, hospitalization and specialized supportive therapies may be required.