How much water should a patient with polycystic kidney disease drink every day?

This calculator helps professionals advise patients with polycystic kidney disease (PKD) on the total amount of daily water they should drink. Lifestyle modifications can slow the progression of PKD. Drinking large amounts of filtered water is the most important lifestyle modification for patients with PKD.

Checking a 24-hour urine osmolality can help identify the amount of daily solutes the patient is eating every day. This value can help recommend the total amount of water needed to maintain a urine osmolality below 280 most/kg. The calculator takes into consideration that 20% of daily water intake comes in food.