True Hyponatremia Differential Algorithm Instead (or in addition) of volume status examination, check urine sodium and serum uric acid: - Urine sodium low, uric acid high in hypovolemic and hypervolemic hyponatremia - Urine sodium high and uric acid low in euvolemic hyponatremia - Joel Topf, MD FACP @kidney_boy #True #Hyponatremia #Differential #Algorithm #Diagnosis #Nephrology