Laboratory Procedures

Urinary calcium reflects dietary intake and rate of calcium absorption. It is used to evaluate endocrine function, calcium metabolism and excretion, and acid–base balance.

Measurement of urine chloride is used to reevaluate renal conservation of electrolytes and confirm serum values. Its purpose is to help evaluate fluid and electrolyte imbalance, and renal and adren...

Creatinine is eliminated from blood by glomerular filtration. Urine creatinine analysis is used to calculate creatinine clearance, or serve as a reference quantity for other analytes, such as in ca...

Renal urine magnesium testing is used in assessing the cause of abnormal serum magnesium concentration. It is also aids in determining whether nutritional magnesium. It may also help on assessing r...

The phosphorous urine test is useful in evaluation increased and decreased levels of phosphatemic states. It also used in the monitroing of patient with nephrolithiasis.

The kidneys provide the most important regulation of K+. Urine Potassium determination is useful in identification of cause for hyperkalemia or hypokalemia.

The kidney is central to the regulation and conservation of electrolytes in the body. Urinary sodium (Na+) excretion varies with dietary intake, and there is a large diurnal variation with the rate...

The urine protein assay is used in the evaluation of renal disease. It is also used as a screening test for monoclonal gammopathy and postural proteinuria.

The urea nitrogen urine test measures the amount of urea nitrogen in a sample of urine. Measurements obtained by this test are used in the diagnosis of renal and metabolic disease.