SODIUM, TIMED URINE

Test Code

LAB446

CPT Codes
84300

Preferred Specimen

Urine, 24 hour collection jug

Minimum Volume

0.5 mL urine

Instructions

Store in refrigerator during collection. do not add preservatives. Time of collection in hours must be written on label.

Transport Temperature

Refrigerated

Specimen Stability

Ambient: 45 days
Refrigerated: 45 days
Frozen: 1 year

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

Incomplete collection or time of collection not indicated

Methodology
Ion-Selective Electrode (ISE) Indirect

Setup Schedule

Sunday-Saturday

Reference Range

Age	Female Range	Male Ranges
<6Y	Reference intervals not established	Reference intervals not established
6Y-9Y	20-70 mmol/day	40-115 mmol/day
10Y-14Y	50-160 mmol/day	60-175 mmol/day
>=15Y	25-285 mmol/day	40-220 mmol/day

Performing Laboratory
West Virginia University Hospital, Inc.
Berkeley Medical Center
Camden Clark Medical Center
Garrett Regional Medical Center
Jackson General Hospital
Princeton Community Hospital
Reynolds Memorial Hospital
Summersville Regional Medical Center
St. Joseph’s Hospital
United Hospital Center
Uniontown Hospital
Wheeling Hospital

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.