- Patient/Guest
- Phlebotomist
- Updates
| Stool pH Exam | - | 
|---|
| Measure stool pH and reducing substances | ||
|  | Synonym | See updates | 
|  | Test Code | CDCPR0007 | 
|  | Test Type | Clinical Pathology | 
|  | Pre-Test Condition | See updates | 
|  | Report Availability | 2 D(s) | 
|  | # Test(s) | Multiple | 
| Test details | Sample Report | 
|---|---|
| Stool pH Exam |   | 
|  | Synonym | See updates | |
|  | Test Code | CDCPR0007 | |
|  | Test Category | Gastrointestinal disorders | |
|  | Pre-Test Condition | See updates | |
|  | Medical History | See updates | |
|  | Report Availability | 2 D(s) | |
|  | Specimen/Sample | Stool; 5 g; St Cont | |
|  | Stability @21-26 deg. C | 6 Hr(s) | |
|  | Stability @ 2-8 deg. C | 24 Hr(s) | |
|  | Stability @ Frozen | NA | |
|  | # Test(s) | Multiple | |
|  | Processing Method | Chemical Analysis | |
| **Stool Examination PH and Reducing Substances****FDA Status**: Standard laboratory procedure under CLIA; no specific FDA approval required.**Other Names**: Stool pH Test, Stool Reducing Sugars Test.**Historical Breakthrough**: Developed in the 1960s to diagnose malabsorption, advancing gastroenterology.**Key Purpose and Impact**: Measures stool pH and reducing substances to diagnose carbohydrate malabsorption or lactose intolerance.**Preparation and Patient History**: Stool sample; report diarrhea, bloating, or dietary history.**Consent Requirement**: Standard consent for non-invasive sample collection.**Clinical Value**: Sensitivity ~85%; specificity ~90%; detects malabsorption in ~50% of cases; guides dietary management.**References Cited**: Testing.com Gastrointestinal Tests 2023; Labcorp Stool pH Test 2025; UpToDate Malabsorption 2025 | 
