The nephrologist may perform a kidney biopsy. When your doctor finds out what causes the protein in your child's urine, he or she can find the best way to treat the problem. No matter what caused the kidney problem, a few simple things can help your child. Eating less salt can reduce the swelling. The medicine is usually given in a high dose at first, and in a lower dose later on.
Some children take a low dose of medicine for months, or even years.
It's important to follow your doctor's instructions about taking the medicine. It's also important to visit the doctor for regular checkups. Although protein in the urine can increase during exercise, this won't hurt your child's kidneys. So you don't need to restrict your child's activities. In children who are potty-trained, you should start the collection on a day when your child doesn't go to school, usually on a Sunday.