Potassium without Creatinine, 24 Hour Urine

Test Code

11316

CPT Codes
84133

Includes

CPT code 81050 may be added at an additional charge for volume measurement

Preferred Specimen

10 mL of a 24-hour urine collected in a no-preservative plastic urine container

Minimum Volume

2 mL

Other Acceptable Specimens

Urine collected with boric acid, acetic acid, or HCl urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Instructions

Record total volume and collection duration on specimen container and test requisition

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 14 days
Refrigerated: 14 days
Frozen: 60 days

Methodology
Ion Selective Electrode (ISE)

Setup Schedule

Set up: Daily; Report available: 2-3 days

Reference Range

22-160 mmol/24 h

Clinical Significance

Urinary excretion of potassium is increased in primary aldosteronism. It is often increased in dehydration and in salicylate toxicity. Decreased levels are seen in malabsorption.

Performing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia, CA 91355-5386

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.