We stay. Didn't actually hear it from the doctor, which might have been nice, but The Boy needs extra hydration. Possibly the kidney issues, also the late start to chemo yesterday and today.
Pros: the nurse will do diaper duty overnight. The extra hydration after this chemo is a good thing. Don't have to make a late-night escape.
Cons: more hospital time. More waiting around. Less sleep for Daddy, maybe. Maybe not if he manages to sleep through the diapers and last Mesna dose.
The doctor said that five day stays for this treatment, even though it is supposed to be five days, are rare. We forgot this. Oh well.