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Sodium, 24 hour (or timed) urine
| Item | Value |
|---|---|
| Approval req'd? | Yes, if testing is requested between midnight and 8:00 AM. |
| Available Stat? | Yes |
| Test code | NAUR |
| Test group | Sodium |
| Performed by | Parnassus Chemistry |
| In House Availability | Test available 7 days per week from 8:00 AM to midnight only. |
| Method | Ion Specific Electrode (ISE) |
| Collection Instructions | Refrigerate the collection container during the period of the collection. |
| Container type | 24 hour urine collection container Click here for Urine Preservative Requirements |
| Amount to Collect | Entire urine output for collection period |
| Sample type | Timed urine collection |
| Preferred volume | 1 mL urine |
| Min. Volume | 0.2 mL urine |
| UCSF Rejection Criteria | Container not refrigerated during collection. |
| Units | mmol/D |
| Normal range | Usually 40-220 mmol/D |
| Synonyms | Urine electrolytes; Na |
| Stability | Refrigerated 2 days |
| Turn around times | STAT 1 hour, Routine same or next day. |
| Additional information | Output varies with diet, but the concentration usually exceeds 20 mmol/L. |
| Last Updated | 3/24/2013 7:53:36 PM |
| Entry Number | 864 |
| Lab Procedure Link | Click here for Procedure |
If you have additional questions regarding this test, please call: 415-353-1667