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24 HR URINE SODIUM PANEL (WRJ)
MessageCHEMISTRY
Test Code
24 HR UA NA
Alias/See Also
24 HR URINE NA+
Includes
TOTAL VOLUME, URINE SODIUM, URINE CREATININE
Preferred Specimen
24 HR URINE
Minimum Volume
20 ML
Instructions
OBTAIN 24HR URINE CONTAINER FROM THE LAB. THIS IS A DRY URINE JUG. DATE AND TIME OF COLLECTION AT THE START OF COLLECTION, AND AT THE END OF COLLECTION MUST BE RECORDED ON THE JUG. KEEP ON ICE DURING COLLECTION PERIOD.
Transport Container
24HR URINE CONTAINER-NO PRESERVATIVE
Transport Temperature
REFRIGERATED OR CONTAINER ON ICE
Specimen Stability
Room temperature: 45 days
Refrigerated (2-8°C): 45 days
Frozen (-20°C or colder): 1 year
Refrigerated (2-8°C): 45 days
Frozen (-20°C or colder): 1 year
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
IMPROPER COLLECTION CONTAINER
Methodology
Indirect ISE
Setup Schedule
DAILY:MON-FRI
Report Available
24-48 HRS
Reference Range
40-220 mmol/24h
Clinical Significance
The excretion of sodium varies with dietary intake. There is a diurnal variation of sodium excretion with excretion being greater during daytime than during the night. Decreased levels are seen in congestive heart failure, excessive sweating, diarrhea, pyloric obstruction, malabsorption and primary aldosteronism. Increased levels may be due to increased salt intake, failure of the adrenal glands, diabetic acidosis, salt losing renal disease, diuretic therapy and water deprivation dehydration.
Performing Laboratory
WHITE RIVER JUNCTION VT VA-CHEMISTRY 802-295-9363 EXT: 5518, 5519
