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HelpTest Code LABFCLPS Cathartic Laxatives Profile, Stool
Additional Codes
| Test Name in EPIC | EPIC Test Code | Mnemonic | Mayo Test ID |
|---|---|---|---|
| CATHARTIC LAXATIVES PROFILE, STOOL | LABFCLPS | FCLPF | FCLPF |
Specimen Required
***Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Specimen Type: Stool
Container/Tube: Acid-washed or trace metal-free plastic container, MCL supply T656
Specimen Volume: 10 g
Collection Instructions: Collect 10 g of stool with no preservative. Send specimen in an acid-washed or trace metal-free plastic container, MCL supply T656. Send specimen refrigerated.
Method Name
Inductively Coupled Plasma Optical Emission Spectrometry (ICP/OES)
Reporting Name
Cathartic Laxatives Profile, FSpecimen Type
FecalSpecimen Minimum Volume
10 mL stool liquid or 10 g stool solid
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Fecal | Refrigerated (preferred) | 30 days | |
| Ambient | 30 days | ||
| Frozen | 30 days |
Reference Values
Reporting limit determined each analysis.
Units: mg/g
Interpretation
Magnesium:
Magnesium concentrations in stool water above the normal levels of 0.7-1.2 mg/mL have been indicative of surreptitious abuse of magnesium containing laxatives.
NMS Labs Calculated Normal: approximately 0.5-10 mg/g (Based on the reported range of magnesium eliminated per day in stool and the range of stool mass per day in adults).
Phosphorus:
Phosphorus concentration in stool water averaged 1.8 ± 0.3 mg/mL (ranged from 0.3-4.2 mg/mL) following administration of 105 mmol of sodium phosphate.
NMS Labs calculated normal: approximately 1.4-22 mg/g (Based on the reported range of phosphorus eliminated per day in stool and the range of stool mass per day in adults).
Performing Laboratory
NMS LabsTest Classification
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
83735
84100
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FCLPF | Cathartic Laxatives Profile, F | Not Provided |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z5906 | Magnesium | 10880-3 |
| Z5907 | Phosphorus | 10884-5 |
Day(s) Performed
Monday through Sunday
Report Available
10 to 14 daysCautions
Specimens for elemental testing should be collected in certified metal-free containers. Elevated results for elemental testing may be caused by environmental contamination at the time of specimen collection and should be interpreted accordingly. It is recommended that unexpected elevated results be verified by testing another specimen in a trace metal-free container.