Doctor's Data Inc

Sodium; urine

CPT Code

84300

Specimen Requirements

30 mL urine

Collection Container/Tube

Collect urine in supplied pastic specimen collection cup. Timed urine collections are poured into a larger container (size of container varies based on collection period).

Transport Container/Tube

50 mL trace metal free plastic tube

Minimum Specimen Volume

6 mL

Rejection Criteria

Sample received in metal container
Creatinine level < 5 mg/dL (urine too dilute)

Stability Information

Room temperature: 30 days
Refrigerated: 30 days
Frozen: 30 days
37°C/99°F: 4 days

Methodology

ISE

Turnaround Time

2 - 4 days

Reference Intervals

Sex Age
Both 0-3 years 35-175 mEq/24H
Both 4-12 years 35-220 mEq/24H
Both 13-16 years 40-250 mEq/24H
Female ≥17 years 40-250 mEq/24H
Male ≥17 years 50-275 mEq/24H
Both 0-3 years 45-350 mEq/g creatinine
Both 4-12 years 45-350 mEq/g creatinine
Both 13-16 years 45-200 mEq/g creatinine
Female ≥17 years 45-200 mEq/g creatinine
Male ≥17 years 40-200 mEq/g creatinine