Cathartic Laxatives Profile, Stool

Last Modified: 9/29/2017 3:34:12 PM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 10.0 mL Fluid Stool in a acid-washed, metal-free container
Collection Instructions:  
Transport & Storage: Temperature/Stability:

30 days Ambient
30 daysRefrigerated
30 days Frozen

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.

Critical Ranges:  
Test Comments:  
Methodology: FAAS & ICP/AES
Clinical Significance: Compliance or abuse monitoring (laxative); not for
clinical diagnostic purposes.
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: Mg (w/Wed Setup) 14 days/PO4 (w/ M-F Setup) 7 days
Sites Performed: Quest - Chantilly to NMS Laboratories
PHL Test Code: MSOT
EPIC Test Code:
Send Out Test Code: 3141
Included Tests: Magnesium, Phosphorus
CPT Coding: 83735, 84100

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