For males, the entire penis can be placed in the bag and the adhesive attached to the skin. For females, the bag is placed over the labia. Check your baby frequently and remove the bag after the infant has urinated into it. The urine is drained into a container for transport back to the health care provider. Water loading involves drinking excessive amounts of water or infusion of a quantity of intravenous solutions.
Water deprivation involves consuming no fluids for a period of time.
Submit a urine sample to the laboratory. Instructions will be given for water loading or water deprivation. The health care provider may advise you to withhold drugs that can affect the test. If the collection is being taken from an infant, a couple of extra collection bags may be necessary. Normally, the kidneys regulate the concentration of urine by adjusting the excretion of water.