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Test Code LAB446 Sodium - 24 Hour Urine

Department

CHEMISTRY

Collection Requirements

24 hour urine.

Do not add preservatives to the collection container.

Keep the container on ice or refrigerated during collection.

Primary Collection Container

24 HR Urine container

Transport

Urine refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Keep specimen refrigerated until processing.

Measure total volume.

Aliquot, centrifuge and refrigerate.

Note total volume on the label.

Stability

Ambient: 8 hours

Refrigerated: 1 week

Minimum Testing Volume

0.5 mL

Reference Range

40 – 220 mmol/L

Methodology

Roche c503 Ion Selective Electrode

Performed

Sunday – Saturday

6:30 am – 3:00 pm

Reported

As completed

CPT Codes

84300