A Leading Toxicology lab

Molecular Testing

MD Diagnostics is a Full Service Lab

Advanced Molecular Testing for Accurate Diagnosis

Molecular testing helps providers find infections faster and choose the right treatment sooner.

We offer PCR-based testing at our CLIA-certified lab in St. Louis. You get clear pricing, same-day collection, and reliable results.

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PGX Testing

The right medication shouldn't be a guessing game.

PGX testing looks at a patient's DNA. It shows how their body handles specific drugs. Providers get this data before problems show up. Fewer adjustments. Fewer callbacks. Better outcomes.

We run PGX testing in our own lab. Same fast turnaround and support you expect from us, now applied to genetics.

Why it matters

2+ Hospitalizations per year from adverse drug reactions

Fewer wrong prescriptions. Genetic data up front means less trial-and-error prescribing and fewer callbacks to adjust dosages.

82% Higher ADR risk for patients on 7+ medications

Fewer adverse reactions. Catch drug-gene conflicts before they become ER visits. Especially critical for patients on multiple medications.

250+ FDA-approved medications covered

Faster to effective therapy. Know whether a patient processes a drug too fast, too slow, or normally, before writing the script.

Who benefits

Long-term care.

When residents are on many drugs at once, the risk of a bad reaction grows fast. PGX testing shows which drugs fit a resident's biology and which may be doing more harm than good. Fewer adverse events. Fewer falls. Fewer hospital stays.

Physician clinics.

When a patient doesn't respond to a drug as expected, PGX results can explain why. It's a useful data point for clinical judgment, especially for treatments with a lot of genetic variation.

Pain management and recovery

Pain drugs work differently for each patient. PGX testing shows how a patient breaks down pain relievers. Providers can build a plan that works — without too much or too little.

What's covered

The PGX panel covers:
Cardiology
Psychiatry
Pain Management
Gastroenterology
Neurology
Pulmonology
Infectious Disease
Oncology
Urology
Anesthetics
Transplant Medicine
Diabetes
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Types of Molecular Testing We Offer

This PCR-based respiratory panel detects COVID-19, Influenza A & B, and RSV from a single nasal swab.

Because these illnesses share symptoms and co-infections are possible, accurate detection is critical. Our multiplex testing provides highly sensitive results to support faster and more precise treatment decisions.