Potassium, SerumMain Content
Test Code: 733
Methodology: Ion Selective Electrode (ISE)
Clinical Significance: Potassium measurements are useful in monitoring electrolyte balance in the diagnosis and treatment of disease conditions characterized by low or high blood potassium levels. Potassium is elevated in adrenal cortical insufficiency, acute renal failure and in some cases of diabetic acidosis. Potassium is decreased in diuretic administration and renal tubular acidosis.
Alternative Name(s): K; K+; K+ Serum
SPECIAL INSTRUCTIONS: Separate from cells as soon as possible after clotting. For plasma potassium, please see test code 11014.
Supply: T01 - Red/Gray SST 8.5mL
Preferred Specimen: Serum
Preferred Volume: 1mL
Transport Container: Serum Separator Tube (SST)
Transport Temperature: Room Temperature
Specimen Stability: Room Temperature: 7 days
Rejection Criteria: Specimens exceeding stability; Unlabeled or improperly labeled specimens; Specimens other than serum; Hemolyzed specimens
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.