Cathartic Laxatives Profile, Stool

Test Code

3141

Alias/See Also

LAB00888
MAGNESIUM STOOL
PHOSPHORUS STOOL

CPT Codes
83735, 84100<br><strong>This test is not available for New York patient testing.</strong>

Includes

Magnesium, Phosphorus

Preferred Specimen

10 g stool collected in an acid-washed or trace metal-free plastic container

Minimum Volume

10 g

Transport Container

Plastic container (acid-washed or trace metal-free)

Transport Temperature

Frozen

Specimen Stability

Room temperature: 30 days
Refrigerated: 30 days
Frozen: 30 days

Methodology
Ion Coupled Plasma/Optical Emission Spectrophotometry (ICP/OES)

FDA Status

This test was developed and its performance characteristics have been determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.

This test is not available for New York patient testing.

Setup Schedule

As needed

Report Available

9-10 days

Reference Range

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).
Not for clinical diagnostic purposes.

Phosphorus:
Phosphorus concentrations 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 1.4-2.2 mg/g (based on the reported range of phosphorus eliminated per day in stool and the range of stool mass per day in adults).
Not for clinical diagnostic purposes.

Clinical Significance

Compliance or abuse monitoring (laxative). Not for clinical diagnostic purposes.

Performing Laboratory

NMS Labs

200 Welsh Road

Horsham, PA 19044

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.