There may also be an increase in acid in your blood. Blood urea nitrogen can become elevated when your kidneys start to fail. Typically, your kidneys clear the products of protein breakdown from ...

Expert Rev Cardiovasc Ther. 2012;10(3):387-395. Patients on bedrest will continue to have OH despite other treatment measures. Time out of bed – at least sitting – is preferred. Exercise and ...

There are several tests that can be done. Blood samples and urine samples may be taken. The BUN (blood urea nitrogen) and creatinine tests find if the kidney is working well as it filters the blood.

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