Potassium, 24 Hr Urine with Creatinine Ratio : 1002718

Test Code
UR24K or 1002718

Alias/See Also
K, Urine; Potassium, Urine

CPT Codes
84133, 82570

Timed urine without preservative (keep refrigerated).

Transport Container
Submit a 10 mL aliquot (Min. 0.5 mL) of the well-mixed timed urine collection in a screw capped container or in a standard transport tube.

The total volume of the urine in mL and the time period of collection in hours must be provided.

Transport Temperature

Specimen Stability
Ambient: 24 hours; Refrigerated: 7 days; Frozen: Acceptable for longer storage

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
No period or volume.

Ion Selective Electrodes (ISE) Indirect, Enzymatic

Setup Schedule
Sunday - Saturday

Report Available
1 day

Reference Range
Potassium, Urine: 25.0-125.0 mmol/24 hours
Creatinine, Urine:
Female: 600-1800 mg/24 hours; Male: 800-2000 mg/24 hours
Potassium/Creatinine Ratio:
Female: 20-100 mmol/g CRT; Male: 15-80 mmol/g CRT
Reference Range assumes a 24 hour collection

Clinical Significance
Diagnosis of acid-base disorders, hypokalemic 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.