A client develops respiratory distress and chest pain during a blood transfusion. The nurse suspects a transfusion-related acute lung injury (TRALI). What is the nurse's priority intervention?

A) Incorrect: Discontinuing the blood transfusion may be necessary if the allergic reaction is severe, but it is not the appropriate action for a mild allergic reaction. The nurse should manage the current reaction and take preventive measures for future transfusions.

B) Incorrect: Administering an antihistamine is appropriate to manage the current allergic reaction,but it may not prevent future allergic reactions. The nurse should focus on preventing allergic reactions in future transfusions.

C) Incorrect: Notifying the healthcare provider is important for appropriate management, but it may not directly prevent future allergic reactions. The nurse should implement preventive measures.

D) Correct: Obtaining a sample for repeat crossmatching is essential to identify and select blood products that are less likely to cause an allergic reaction in the client. This step can help prevent future allergic transfusion reactions and ensure safer blood product selection.

A) Correct: Red blood cells are the main blood component involved in the crossmatching process. Crossmatching ensures compatibility between the donor's red blood cells and the recipient's plasma, preventing adverse reactions during the transfusion.

B) Incorrect: White blood cells are not part of the crossmatching process. They play a role in the immune response but are not specifically assessed during crossmatching.

C) Incorrect: Platelets are not directly involved in the crossmatching process. Crossmatching primarily focuses on red blood cell compatibility.

D) Incorrect: Plasma is not directly involved in the crossmatching process. The focus is on ensuring compatibility between red blood cells and the recipient's plasma.