Orthostatic Proteinuria

Generally speaking, orthostatic proteinuria is when protein is present in the urine. Kidneys function as a filter, removing excess of fluid, salt, and waste from the blood as it passes through them. Usually, proteins are simply too big to be held by kidneys, and therefore they are not present in urine. However, under some circumstances it may happen and when it does, the amount of useful protein in the body decreases, because it is being eliminated from the system.

More specifically, orthostatic proteinuria occurs in some older children and teenagers. The word orthostatic refers to the kid’s position. The condition is called orthostatic proteinuria because protein goes into urine only when the kid is in a stand-up position.

Causes Of Orthostatic Proteinuria

Children with orthostatic proteinuria usually don’t have any kidney damage; they just start eliminating protein into the urine during the day. At night and when they are lying down, their kidneys function normally. The exact cause of this phenomenon is unknown, although it is suspected to be somehow related to kidney swelling.

Symptoms Of Orthostatic Proteinuria

Symptoms of orthostatic proteinuria are derived from the decreasing amount of protein in the blood stream. Although this condition causes no pain per se, pain can come from swollen eyelids, ankles and legs, typical results of lack of protein in the body. High blood pressure may also be another sign of this problem.

Treatment Of Orthostatic Proteinuria

Usually, no treatment is needed; orthostatic proteinuria’s effects are just too small to be taken as a risk. But if after a few months the amount of protein in urine persists or gets higher, a nephrologist may want to perform a kidney biopsy to find out the underlying cause of the orthostatic proteinuria and treat it accordingly. If kidney swelling is present, reducing the consumption of salt and taking anti-inflammatory medication can reduce the problem.

Prevention Of Orthostatic Proteinuria

There are no specific actions to take in order to prevent orthostatic proteinuria. Even when it’s known that the concentration of protein in the urine increases during physical activities, there is no reason to restrict your kid’s recreation or sport activities, because they don’t represent any harm to his kidneys.

Studies show that orthostatic proteinuria is less frequent in kids that have a proper, varied diet; so reducing salt ingestion, increasing water consumption and taking healthy meals may effectively prevent some cases of orthostatic proteinuria.