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Test Code NAURDM Sodium Urine Random

Additional Codes

Cerner

NextGen

Sodium Urine Random

Sodium Urine Random

Methodology

Potentiometric

Patient Preparation

None

Collection Instructions

Catheterized specimens collected according to clinical policies and procedures

Radom clean catch instructions: Random Urine Collection Instructions

Specimen Requirements

Container
  • Sterile/clean plastic urine container

 or  or 

  • Non-preservative urine tube (BD Vacutainer® Ref #364980)

Stability

Storage

Temperature

Stability

Room Temperature

18-28°C

≤ 24 hours

Refrigerated

 2-8°C

≤ 7 days

Frozen

≤-18 °C

≤ 6 months

Rejection Criteria

Not Defined

Result Reporting and Reference Values

Reported in mEq/L

Reference ranges not established. Suggest 24 hr study.

Reflex Testing

None

Limitations

  • Ortho reports a bias with the following:
    • Cationic surfactants (eg. benzalkonium chloride) can cause a positive bias
  • Ortho reports no significant effect with the following: 
    • Bilirubin up to 40 mg/dL
    • Hemoglobin up to 1000 mg/dL
    • Lipemia up to 800 mg/dL

Useful For

Sodium is the major cation of extracellular fluids. The kidneys regulate sodium content of the body. Low sodium levels may be caused by excessive urine loss, diarrhea, Addison’s disease, and renal tubular disease. High sodium levels may occur in severe dehydration, some types of brain injury, diabetic coma, and excessive intake of sodium salts.