24 Hour Urine – Cortisol

by | Jul 6, 2026

Test Information: Cortisol is the major glucocorticoid hormone secreted by the adrenal cortex. Its physiological functions include regulation of carbohydrate metabolism and electrolyte and water distribution. Cortisol also has immunosuppressive and anti-inflammatory...

24 Hour Urine – Sodium

by | Jul 6, 2026

Test Information: 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 of Na+ excretion during the night being only 20% of...

24 Hour Urine – Potassium

by | Jul 6, 2026

Test Information: The kidneys provide the most important regulation of K+. Urine Potassium determination is useful in identification of cause for hyperkalemia or hypokalemia. Specimen Container: 24 Hour Urine Container (Plain) Specimen Type: 24 Hour Urine Required...

24 Hour Urine – Phosphorus

by | Jul 6, 2026

Test Information: Determination of Phosphorus in 24 Hour Urine specimen aids in evaluation of patients with nephrolithiasis. Specimen Container: 24 Hour Urine Container (with Preservative) Specimen Type: 24 Hour Urine Required Volume: 10mL Patient Preparation: •  At...

24 Hour Urine – Magnesium

by | Jul 6, 2026

Test Information: 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 risk to kidney stones. Specimen Container: 24 Hour...

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