Days Set Up
Monday - Sunday
Analytic Time

9 - 11 days

Soft Order Code

Test Updated:


3,4-Dihydroxyphenylglycol (DHPG)

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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

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

Test FAQ

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Test Overview

Test Methodology

High-Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Test Usage

Monitoring patients on ganciclovir. Serum concentrations of ganciclovir do not correlate well to toxicity or efficacy. Reference ranges provided are representative of typical serum concentrations seen during therapy, but individual values must be interpreted in conjunction with the clinical status of the individual patient and the specific characteristics of the infecting microorganism.

Reference Range

0.2 mcg/mL

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

Specimen Requirements

Red Top Tube
Normal Volume
3 mL plasma
Minimum Volume
1 mL plasma

Billing Information

CPT Code
Pro Fee Code

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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.