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Automated pH Monitoring Report

Published: August 9, 2026Updated: August 16, 2026

An automated report of pH measurements taken to assess acidity changes over time. The exact monitored body site and test protocol are not specified by this code.

Quick summary

["This test tracks changes in pH to help determine whether symptoms are related to abnormal acidity."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
64296-7
Short code
PH monitoring report Auto
Synonyms
PH monitoring report Auto
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
automated
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

A pH monitoring test measures how acidic or alkaline a body fluid or tissue is over time. A small sensor may be placed at the site being studied, and the results are presented in an automated report.

Why might I need this test?

This test may be used to evaluate symptoms such as persistent heartburn, reflux, unexplained coughing, or irritation of the throat or esophagus. The purpose and monitored site depend on the clinical situation and the specific protocol ordered.

How is the test performed?

A thin sensor is placed through the nose or onto the designated area, depending on the type of pH study. The sensor records readings for a specified period, which are then analyzed and summarized in a report.

How do I prepare for the test?

Follow the instructions provided for the specific pH study. These may include avoiding certain foods, drinks, smoking, or medicines for a period, and keeping a symptom diary; do not stop prescribed medicines unless your clinician instructs you to do so.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

pH monitoring report

Frequently asked questions

Does this test require a hospital or laboratory visit?
You may need to visit a clinic to have the sensor placed, but the monitoring itself is usually done while you go about your normal activities. The exact arrangement depends on the type of pH study.
Is this the same as an upper endoscopy?
No. pH monitoring measures acidity over time, while an upper endoscopy uses a camera to examine the lining of the upper digestive tract. Sometimes both tests are used together.
What should I do if my pH monitoring report is abnormal?
Discuss the report with your clinician, who can interpret it alongside your symptoms and other findings. Abnormal pH does not identify a cause by itself and may lead to additional testing or treatment.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy