Fairly sure he's reading it correctly - the article goes on to talk about how he has to depend on other donors, and how he has to be very careful since there ar

Fairly sure he's reading it correctly - the article goes on to talk about how he has to depend on other donors, and how he has to be very careful since there aren't any nearby. The sentence by itself is unclear, but the context of the surrounding paragraph makes it pretty clear that while he can donate blood to have on reserve in case he needs it, he might be screwed if someone else needed it, because he has to allow them to use it.