Osmolality Fecal
Order Name
OSMO FEC
Test Number: 3502020
Revision Date 12/12/2022
Test Number: 3502020
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Osmolality Fecal
|
Freezing Point Depression | 2693-0 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 15 mL | Stool, Random | Stool specimen container | Frozen |
| Instructions | Specimen Type: Small plastic container; do NOT use large paint can. Specimen Storage: FREEZE Specimen Collection: Stool sample must be collected without addition of water. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested. Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available |
|||
| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 2 - 4 days |
| Clinical Use | Useful for diagnosis of factitious diarrhea (where patient adds water to stool to simulate diarrhea). A stool osmo is used in conjunction with a serum osmo to calculate an osmotic gap. |
| Notes | Labcorp Test Code: 120071 |
| CPT Code(s) | 84999 |
| Internal Comments | moved from chemistry to arup 9/14/15 10/21/16 Updated transport temp from refrigerated to frozen added ref lab info- JLS |
| Service Provided By |  |
| Lab Section | Reference Lab |