Days Set Up
Daily, 24 hours
Analytic Time

STAT: 1 hour, Routine: 4 hours

MiChart Code
pH, Body Fluid
Soft Order Code

Test Updated:


Body Fluid, pH
pH, Urine
pH, Urine

Looking to order a test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

pH Meter

Test Usage
Reference Range

Pleural fluid: 7.64
Urine: 4.6 - 8.0

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Place body fluid in a lavender top (EDTA) tube or clean, leakproof container.
Collect random urine sample in a plastic urine cup or yellow top no additive urine Vacutainer® tube.
For optimal results, specimen should reach laboratory within 1 hour of collection. If specimen must be stored, refrigeration is recommended. Specimen must be received within 24 hours of collection.

100ml Plastic Specimen Container
Lavender Top Tube
Non-Additive Urine Transport Tube
Normal Volume
3 - 5 mL
Minimum Volume
3 mL

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.