Laboratory Services
Sodium, Urine, 24 hr
Print this pageUpdated Test Information:
| Test Description |
Sodium, Urine, 24 hr
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|---|---|---|
| Synonym(s) |
Na
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| Test ID |
UNA24
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| General Information |
Urinary excretion of sodium varies significantly with dietary intake. Reference ranges given are typical of people on an average diet.
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| Specimen Type |
Urine
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| Specimen Requirements |
Urine, 24 hour collection
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| Specimen Collection / Processing Instructions |
Urine, 24 hour collection - Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Screw the lid on securely. Container must be labeled with patient's full name, date and time collection started, and date and time collection finished.Store refrigerated during collection.
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| Additional Processing Details |
The test request form must state date and time collection started, date and time collection finished, and 24-hour urine volume.
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| Stability |
14 days at 15-25°C
14 days at 2-8°C Stable at -20°C |
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| Methodology |
Ion Selective Electrode
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| Estimated TAT |
0-2 days
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| Testing Schedule |
Monday-Saturday
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| CPT Code(s) |
84300
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| Reference Range |
40-220 mmol/24hr
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| Performing Lab |
Incyte Diagnostics
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| LOINC Code(s) |
2956-1
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