Casandra
Casandra Test Code QD33297Version 1 (DRAFT)
Performing Lab
Sodium, Feces (8833)
Clinical Use
Order TestUse
Measurement of sodium in feces is useful in evaluating electrolyte loss in diarrhea and malabsorption states. It helps in assessing fecal sodium concentrations over specified collection periods (e.g., random watery liquid stool collected over 24‑hour, 48‑hour, or 72‑hour) to support differential diagnosis between osmotic and secretory diarrhea.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
Sodium
AnalyteSodium • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
2-5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Stool
Volume
10 mL
Minimum Volume
2 mL
Container
Sterile Container
Collection Instructions
2‑10 mL random watery liquid stool (24‑Hour, 48‑Hour, or 72‑Hour); indicate collection time duration (24‑Hour, 48‑Hour, or 72‑Hour) in comments, on specimen and on batch sheet.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 7 Days |
| Frozen | 60 Days |