Answer to Question 1
For a transfusion to be successful, the ABO and Rh groups must be compatible between the patient and the donor blood. If incompatibility exists, the patient's blood cells and donor blood cells can agglutinate and cause clogging of blood vessels, which can stop circulation to parts of the body.
Answer to Question 2
B
Explanation: A) A diuretic drug removes excess urine from the body; hydroureter is the backup of urine in the ureter.
B) Correct
C) A urinary tract infection is not associated with hydroureter.
D) Only one of the answers is correct.