A patient with diabetes mellitus type 1 is admitted to the hospital with severe pyelonephritis, a kidney infection. What is a cause of urinary tract infections in people with diabetes?
a. Excess glucose leads to obstruction of the urethra.
b. Increased blood flow introduces pathogens from other sites in the body.
c. Excess glucose supports growth of bacteria.
d. Alkalosis of the urine provides a good environment fohbacterial growth.