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When a patient undergoing a blood transfusion complains of flank pain and hematuria, the adverse reaction should be a suspected hemolytic transfusion reaction.

Hematuria is the presence of blood in someone's urine. Gross hematuria is when someone can see the blood in his or her urine, and microscopic hematuria is when someone cannot see the blood in his or her urine, but a fitness care professional can see it beneath a microscope.

Blood in the urine can have causes that aren't because of underlying disease. Examples include unexplained individual variations or workouts.

At the same time many times, the reason is innocent, blood inside the urine (hematuria) can suggest an extreme sickness. The blood that you may see is known as gross hematuria. Urinary blood is seen simplest under a microscope (microscopic hematuria) is observed while your doctor assesses your urine.

Learn more about hematuria here https://brainly.com/question/13253431

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