How much fluids?

I'm in the hospital now, and they're giving me decaf tea, apple juice diluted with water, and Crystal Light. Should I be drinking all of this, and how fast should I be drinking it?

I am off the IV now, so I'm just worried about being dehydrated.

Drink as much as you can as fast as comfortable.  The first week I could drink an ounce every 15 minutes.  In a week I could do 12 ounces in 15 minutes.

yes,drink it all and more if you can. You should have an open container of something in your hand all the time and sipping. You can't drink too fast. Liquid runs right thru the pyloric valve which opens Shen liquid hits your sleeve/pouch.