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To assist in evaluating for acute kidney injury, chronic kidney disease, acute oliguria, and to assist in the differential diagnosis of hyponatremia.
There are no food, fluid, activity, or medication restrictions unless by medical direction. Usually, a 24-hr urine collection is ordered. As appropriate, provide the required urine collection container and specimen collection instructions.
Method: Ion-selective electrode.
|Age||Conventional Units||SI Units (Conventional Units × 1)|
| Male||41–115 mEq/24 hr or mmol/24 hr||41–115 mmol/24 hr|
| Female||20–69 mEq/24 hr or mmol/24 hr||20–69 mmol/24 hr|
| Male||63–177 mEq/24 hr or mmol/24 hr||63–177 mmol/24 hr|
| Female||48–168 mEq/24 hr or mmol/24 hr||48–168 mmol/24 hr|
|Adult–older adult||51–287 mEq/24 hr or mmol/24 hr||51–287 mmol/24 hr|
|Values vary markedly depending on dietary intake and hydration state.|
Critical Findings and Potential Interventions
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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Sodium, Urine." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425297/all/Sodium__Urine.
Bladh ML, Van Leeuwen AM. Sodium, Urine. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425297/all/Sodium__Urine. Accessed October 20, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Sodium, Urine. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425297/all/Sodium__Urine
Bladh ML, Van Leeuwen AM. Sodium, Urine [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 October 20]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425297/all/Sodium__Urine.
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