Laboratory Medicine Program

Sodium, urine

Clinical Decription:
The measurement of sodium is used mainly in the diagnosis and treatment of gross changes in water and salt balance, aldosteronism, diabetes insipidus, adrenal hypertension, Addison?s disease, dehydration, inappropriate antidiuretic hormone secretion, diabetic acidosis, severe diarrhea, or other diseases involving electrolyte imbalance.
<br/><em>Bayer Advia 1650 Sodium package insert Bayer Advia 1650 Manufacturer's Manual</em>

Method: Automated method; Advia

Component Tests Used: n/a

Reference Ranges Used:
Time urine sodium: < 220 mmol/d Random urine sodium: Diet dependent

Specimen Type: Random or 24 hour urine
Volume: 20 mL (minimum: 10 mL)

Shipping: 4C

Special Instructions: If 24 h urine is required, discard first morning sample, collect all other urine for a 24 hour period, to include second morning sample. Record volume and aliquot.

Testing Schedule(s): on demand, .

Turnaround Time: 1 day

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