still hoarse

I went to visit my brother a little earlier in the week this week, in part because I was worried about his hoarseness.  He's still hoarse and has a bit of a runny nose.  I stopped by and talked to the head nurse.  She said they started taking his blood again on a weekly basis because his numbers "were low".  She is Philippino and it's very hard to understand her English so I couldn't follow everything she was saying, something about his platelet count.  But she also said his numbers had improved and that it looked like it was just a cold.  At least she knew something about it.  My husband thinks I should call his doctor and find out why he is getting the blood tests.  I think I'm not getting billed for it because now that his insurance has stopped, medicaid is getting billed for everything.  What a crazy, crazy system.