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HelpTest Code LAB1232044 Electrolyte and Osmolality Panel, Feces
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Electrolyte and Osmolality Panel, FSpecimen Type
FecalOrdering Guidance
This test is only clinically valid if performed on watery specimens. In the event a formed fecal specimen is submitted, the test will not be performed.
Specimen Required
Patient Preparation: No barium, laxatives, or enemas may be used for 96 hours prior to start of, or during, collection.
Supplies: Stool containers-24, 48, 72 Hour Kit (T291) Note: A random collection is required, but may be submitted in containers provided for timed collection.
Container/Tube: Stool container
Specimen Volume: 10 g
Collection Instructions:
1. Collect a very liquid, random stool specimen.
2. Do not add preservative to the specimen. If a preservative is added, testing will be canceled.
Reject Due To
| Preservatives added | Reject |
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Fecal | Frozen (preferred) | 14 days | |
| Refrigerated | 7 days | ||
| Ambient | 48 hours |
Specimen Minimum Volume
5 g
Day(s) Performed
Monday, Thursday
Specimen Retention Time
7 daysReport Available
1 to 3 daysReference Values
An interpretive report will be provided
Useful For
Workup of cases of chronic diarrhea
Diagnosis of factitious diarrhea (where patient adds water to stool to simulate diarrhea)
CPT Code Information
82438-Chloride
83735-Magnesium
84302-Sodium
84100-Phosphorus
84999 x 2-Osmolality, Potassium
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| EFPO | Electrolyte and Osmolality Panel, F | 88697-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| NA_F | Sodium, F | 15207-4 |
| K_F | Potassium, F | 15202-5 |
| CL_F | Chloride, F | 15158-9 |
| MG_F | Magnesium, F | 29911-5 |
| OG_F | Osmotic Gap, F | 73571-2 |
| POU_F | Phosphorus, F | 88713-3 |
| OSMOF | Osmolality, F | 2693-0 |
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| NA_F | Sodium, F | No | Yes |
| K_F | Potassium, F | No | Yes |
| CL_F | Chloride, F | Yes | Yes |
| OSMOF | Osmolality, F | Yes | Yes |
| MG_F | Magnesium, F | Yes | Yes |
| OG_F | Osmotic Gap, F | No | Yes |
| POU_F | Phosphorus, F | Yes | Yes |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.