what to do?

I am on call right now. I got a page at around 1:00am from my senior resident. She had been looking through the last labs on one of the patients on the floor with cancer who is getting chemo and saw that he had a questionable lab value - some blood in his urine. He's had blood in his urine for a while but she got concerned because he went from moderate (5-10 cells per high powered field) to large (10-50 cells). What you must know is that the urine two before he had had large blood, so he went from large to moderate back to large. It's now one thirty and my resident wanted me to call the heme-onc doctor to find out if she was worried. I wasn't worried and I didn't think she would be worried either, and she is at home sleeping. So what to do? Do I have to wake her up for this? I almost didn't, and I really didn't want to, but I did, only because my senior resident told me to. Aargh! She wasn't worried. Alas...