pH, Stool

LOINC codes: 2755-7
Tests that measure pH, Stool: Labcorp 1, Quest Diagnostics 1

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, pH, Feces 1304

Population	Interval
Newborns (Neonates) Birth through 28 days	5.0-7.0 pH units
Infants >1 month through 2 years	Not stated
Bottle Fed; Neutral or slightly alkaline	≥7.0 pH units
Breast fed; slightly acidic	<7.0 pH units
>2 Years	7.0-7.5 pH units

Quest Diagnostics test catalog, 1304

Tests

Check the catalog code, specimen, method and preparation for every test that measures pH, Stool. Select up to five tests to compare them side by side.

Labcorp 1 test

Single-analyte tests

pH, Stool 010991
Stool · Fasting not stated · Turnaround 3 - 5 days
Method and collection
Method
Aqueous stool suspension measured with pH paper
Preparation
Barium procedures and laxatives should be avoided for one week prior to collection of the specimen.
Reference notes
pH: 0 to 6 months: 4.5–5.5 >6 months: 7.0–7.5
Labcorp catalog page

Quest Diagnostics 1 test

Single-analyte tests

pH, Feces 1304
Stool · Fasting not stated · Turnaround Set up: Mon-Fri
Method and collection
Method
Potentiometry
Collection
Random liquid or soft stool specimen collected in sterile plastic container or stool specimen container with spork (warehouse #77000). Adult and older children patients can collect the specimen by passing feces into plastic wrap stretched loosely over the toilet bowl. Then transfer 5 g of the stool specimen into the plastic container. With young children and infants wearing diapers, the diaper should be lined with clean plastic wrap to prevent absorption. A pediatric urine bag can be attached to the child to ensure that the stool specimen is not contaminated with urine. Then transfer 5 g of the stool specimen from the plastic lined diaper to the plastic container. Do not submit the diaper itself. Freeze and transport frozen.
Quest Diagnostics catalog page

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Sources

Check the guidelines, studies and lab catalogs behind every range and link on this page. Open a source to see each claim it backs.

Lab catalogs

Labcorp test menu
Labcorp
- Test catalog: 1 tests, with codes, specimens, methods and reference intervals
Open source
Quest Diagnostics test menu
Quest Diagnostics
- Test catalog: 1 tests, with codes, specimens, methods and reference intervals
Open source

Codes and registries

LOINC 2755-7
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for pH, Stool
Registered studies that measure pH, Stool, on the U.S. National Library of Medicine registry.

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

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