Do is i screen the urine. people come to the office. i want them to get a your urina. by the time kidney function has directodeteriorated to the poinu see it on a blood test, it's already affected. if there's blood cells in the urine that aren't supposed to be there, i might say send the patient to dr. samadi, a urologist. maybe there's a kidney stone or another problem like kidney cancer. why do they have blood in the urine. if there's protein in the urine, that's a sign there's a problem. i treat a lot of diabetics and people with hypertension. those make up the bulk of people with kidney pr...