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Register NowElectrolytes
Chloride
Evaluate electrolytes, acid-base balance, water balance. Chloride generally increases and decreases with plasma or serum sodium.Chloride is increased in dehydration, with ammonium chloride administration, with renal tubular acidosis (hyperchloremic metabolic acidosis) and...
View Lab TestChloride, 24-Hour Urine (003160)
Evaluate electrolyte composition of urine, acid-base balance studies. Distinguish whether or not a case of metabolic alkalosis is chloride-responsive (salt responsive). Sherman and Eisinger1,2 discuss bicarbonate excretion, blood volume, potassium depletion, and the differe...
View Lab TestPotassium
Evaluate electrolyte balance; followed patients on diuretic therapy and with renal diseases, particularly salt-losing nephropathy; evaluate patients being treated for acidosis; prevent cardiac arrhythmias; evaluate alcoholism with delirium tremens; evaluate and treat ketoacidosis...
View Lab TestPotassium, 24-Hour Urine
Evaluate electrolyte balance, acid-base balance; evaluate hypokalemia; Carroll and Oh point out that urinary loss of 40 mmol/24 hours in the presence of hypokalemia <3 mmol/L is excessive.1 In the presence of such hypokalemia, urine excretion is helpful to separate renal...
View Lab TestSodium
Electrolyte, acid-base balance; water balance; water intoxication; diagnose dehydration.Hypernatremia occurs in dehydration. For instance, nasogastric protein feeding with insufficient fluids may cause hypernatremia. Hypernatremia without obvious cause may relate to Cushing syndr...
View Lab TestSodium, 24-Hour Urine
Work up volume depletion, acute renal failure, acute oliguria, and differential diagnosis of hyponatremia.1 Division of hyponatremia into hypervolemia or not, edema or not, and urinary Na+ less than or greater than 10 mmol/L provides a classification of hyponatremia.2 History of...
View Lab TestTestosterone, Free, Equilibrium Ultrafiltration With Total Testosterone, LC/MS-MS
Evaluate hirsutism and masculinization in women; evaluate testicular function in clinical states in which the testosterone-binding proteins may be altered (obesity, cirrhosis, thyroid disorders).This test was developed and its performance characteristics determined by LabCorp. It...
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