Ordering Recommendation

Mnemonic

U NA

Methodology

Quantitative Ion-Selective Electrode

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

24-hour urine with no additive. Refrigerate during collection. Also acceptable: Random urine.

Specimen Preparation

Transport 1 mL aliquot of urine from a well-mixed collection. (Min: 0.2 mL) Record total volume and collection time interval on transport tube and test request form.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

pH adjusted urine specimens.

Remarks
Stability

Ambient: 14 days; Refrigerated: 2 weeks; Frozen: 1 month

Reference Interval

Test Number
Components
Reference Interval
  Creatinine, Urine - per 24h
Age
Male (mg/d)
Female (mg/d)
3-8 years 140-700 140-700
9-12 years 300-1300 300-1300
13-17 years 500-2300 400-1600
18-50 years 1000-2500 700-1600
51-80 years 800-2100 500-1400
81 years and older 600-2000 400-1300

  Sodium, Urine - per 24h 51-286 mmol/d

Interpretive Data



Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

84300

Components

Component Test Code* Component Chart Name LOINC
0020201 Sodium, Urine - per volume 2955-3
0020207 Creatinine, Urine - per volume 2161-8
0020208 Creatinine, Urine - per 24h 2162-6
0020601 Sodium, Urine - per 24h 2956-1
0097110 Total Volume 19153-6
0097111 Hours Collected 30211-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Electrolytes, Urine
  • Lytes, Urine
  • Na
  • Na Urine
  • Na+ Urine
  • Urine Na
  • Urine sodium
Sodium, Urine