Final answer:
Furosemide (Lasix) is a loop diuretic that is 80-100% bioavailable with oral dosing and is used in patients with bowel edema from heart failure.
Step-by-step explanation:
The loop diuretic that is 80-100% bioavailable with oral dosing and is used in patients with bowel edema from heart failure is Furosemide (Lasix).