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Sodium Urine 24 hours
MessageChemistry
Test Code
LAB446
Alias/See Also
NA-urine 24HR
CPT Codes
84300
Includes
Total Urine Sodium Output over 24 hr period
Minimum Volume
300 uL urine
Instructions
Refrigerate urine during collection. Submit entire collection to Laboratory with completed. Order Requisition
LAB: Properly labeled Timed collection received with Order Requisition.
Measure urine volume and record on Order Requisition.
Mix well, aliquot 5 mL and centrifuge.
Take spun urine aliquot and Order Requisition to Tech for testing.
Tech will verify HOURS of collection on Order Requisition:
Date Urine Collection Started
Date urine Collection Ends
Time Urine Collection Started
Time Urine Collection Ends
LAB: Properly labeled Timed collection received with Order Requisition.
Measure urine volume and record on Order Requisition.
Mix well, aliquot 5 mL and centrifuge.
Take spun urine aliquot and Order Requisition to Tech for testing.
Tech will verify HOURS of collection on Order Requisition:
Date Urine Collection Started
Date urine Collection Ends
Time Urine Collection Started
Time Urine Collection Ends
Specimen Stability
Ambient: up to 24 hours.
Refrigerated: 1 week.
Frozen: 6 months.
Refrigerated: 1 week.
Frozen: 6 months.
Report Available
Same day
Reference Range
43-217 mmol/day
Performing Laboratory
Hoag Newport/ Hoag Irvine
