My Husband, 60 Years Old, As Had Blood In The

my husband, 60 years old, as had blood in the urine for about 4 weeks. Sometimes there is burning when he urinates. Occasionally, there are blood clots excreted in the urine. His PSA was normal, and prostate exam was normal. He goes for a cystoscopy tomorrow. HE has had a CT scan. The doctor is not moving fast enough for us, or giving us results when asked. What could this be?