Biochemistry
| Full details for "Fractional Excretion of Sodium ". | |||||||||||||||||
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Name |
Fractional Excretion of Sodium | ||||||||||||||||
Alternative name/Profile |
FENA | ||||||||||||||||
Department |
Biochemistry | ||||||||||||||||
Investigation |
This is an assessment of the sodium filtered by the kidney. This is calculated using paired serum and urinary sodium and creatinine. It may be helpful in differentiating the cause of acute kidney injury. | ||||||||||||||||
Specimen type |
Random urine and serum | ||||||||||||||||
Sample type |
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Sample container & volume |
5mL - Red Tube for serum and Universal container / 5mL for urine | ||||||||||||||||
Frequency of analysis |
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Turnaround time |
1 day | ||||||||||||||||
Availability |
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Notes |
Blood and urine samples should be taken at the same time. | ||||||||||||||||
Related links |
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Reference range |
Interpretation Guide
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Last updated |
Thu, 16 Oct 2025 15:41:17 IST |