Potassium, Serum : 733

Test Code
KAU or 733

CPT Codes

Separate from cells as soon as possible after clotting.

Transport Container
Preferred Specimen
1 mL serum

Minimum Volume
0.5 mL

Transport Temperature
Room temperature.

Specimen Stability
Room temperature: 7 days; Refrigerated: 7 days; Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Plasma

Ion Selective Electrodes (ISE)

Setup Schedule
Sunday - Saturday

Report Available
1 day

Reference Range
≤1 Week                  3.2-5.5 mmol/L

8-27 Days                3.4-6.0 mmol/L

1-5 Months              3.5-5.6 mmol/L

6 Months -1 Year     3.5-6.1 mmol/L

2-19 Years               3.8-5.1 mmol/L

≥20 years                 3.5-5.3 mmol/L

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.

Performing Laboratory
med fusion

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.