32238:SODIUM (Na), 24-HOUR URINE

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32238:SODIUM (Na), 24-HOUR URINE
Methodology: Direct Potentiometry
Edit Date: 3/17/2009
Performed: Daily
Released: Same day as tested
CPT Code: 84300
Specimen Collection Details
Collection: 24-hour urine in a 24-hour urine container. Collect without preservatives. Refrigerate during collection. Note time collection started and stopped.
Handling: Send complete collection in original container. If submitting aliquot, mix total collection well and measure and record total volume before pouring off into a sterile container.
Standard Volume: Total urine collection or 25 mL aliquot.
Minimum Volume: 5 mL urine.
Transport: Refrigerated.
Rejection Criteria: Specimen collected in HCl; incomplete collection; specimen not refrigerated.

Reference Range:
40-220 mEq/24-hours

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