A client experiences an ABO incompatibility reaction after multiple blood transfusions. Which finding should the nurse report immediately to the healthcare provider?

Choice A reason: Arthritic joint changes and chronic pain are not related to an ABO incompatibility reaction.Choice B reason:The correct answer is b) because lower back pain and hypotension are signs of a hemolytic transfusion reaction, which requires immediate intervention.Choice C reason: Acute rhinitis and nasal stuffiness are not related to an ABO incompatibility reaction.Choice D reason: Delayed painful rash with urticaria can indicate an allergic reaction but is not specific to a hemolytic transfusion reaction.