Ken Washington, a 61-year-old male patient, arrived today for a follow-up visit from a recent hospitalization for a stroke. Up until this hospitalization, he has had no major health issues. He now has weakness in his left arm and his speech is difficult to understand. His wife tells you that she has noticed some blood in the toilet after he urinates. She also tells you that he has had some pain when he urinates and often only urinates a small amount. Dr. Buckwalter would like for you to obtain a urine sample for a reagent test and have Ken collect a 24-hour urine sample for analysis.

What instructions will you give Ken in collecting the urine sample for reagent testing and for a 24hr collection? What is a possible diagnosis for Mr. Washington?