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Accurate and Non-Invasive

Covid-19 Sampling, Testing & Results

Clarifi COVID-19 Tests Now Available in San Antonio

MD Toxicology is proud to begin its efforts to help battle the COVID-19 Pandemic by providing drive-thru testing services for COVID-19. MD Toxicology is now scheduling for drive-up testing of the Clarifi Covid-19 PCR test, a pain-free, non-invasive, easy to administer, saliva swab test and the reagents needed to run the analysis.

This stabilizing solution was designed to prevent RNA degradation prior to laboratory analysis, the test also utilizes Quantitative Real Time Polymerase chain reaction (qRT-PCR). This feature is critical, as COVID-19 is a single-stranded RNA virus and susceptible to degradation by enzymes in mucus and saliva.

Benefits of This Test

  • A Patient Guided Oral Swab (5 Seconds or less)
  • Clarifi Covid-19 Test is Pain-Free & Non-Invasive
  • Uses Polymerase Chain Reaction, PCR, for Additional accuracy
  • Results in 24hrs. on Receipt of Sample (varies by location)
  • Covid-19 PCR Mouth Swab $155.00 - Covid-19 Antigen Test $79.00 covered by most health insurance or CARES ACT - https://home.treasury.gov/policy-issues/coronavirus

We Are Certified

Covid-19 Sampling - Testing & Results

MD Toxicology is a San Antonio based laboratory that specializes in accurate positive or negative COVID-19 testing and provides results within 24 hours of receipt of sample. We use a non/invasive sampling process that involves a mouth swab, vs. an abrasive nasal swab or blood draw.


Select "Schedule Your Test" below and register and pay for sampling on a selected time and date. Sampling takes about 30 seconds and is completely non-invasive


We use both an RNA stabilizer and in the swab kit that kills the virus, is not affected by temperature and can hold the specimen integrity at the time of sample.


You will have peace of mind knowing that the most accurate equipment available will generate your results within 24 hours of receipt of samples.

Before Your Test

To have a successful drive-up procedure that gets you in-line, tested and on your way back to work or home ASAP, requires your help. This section will detail driving instructions as well as downloading required documentation need before you can take your test.

Required Documentation

The required documentation includes 1: Waiver and Consent; 2. COVID Questions; 3. Client Information;. All three documents are included in a single PDF download.

Using the link below, print the documents and provide data where requested, and bring forms with you to your test. Failure to do so will delay your testing.

Download Docs         Dr. Requisition*

* If filing with insurance, doctor must sign requisition


1. Don't eat, drink, chew gum, tobacco or smoke 30 minutes before your test.
2. Please arrive 15 minutes before your scheduled test
3. Bring the documents with you to the test. MD Toxicology staff will need these documents at that time.

Driving Instructions

1. Head southeast on Starcrest Dr. toward Blue Crest Ln. 0.5 mi
2. Turn right (south) on Budding Blvd. Drive 0.2 miles to Bldg. A
3. Turn right Drive 328 ft to MD Toxicology

Schedule Location of Your Clarifi COVID-19 PCR Test

Accurate, Non-Invasive, Sampling and Results Within 24 Hours

The history of COVID-19

The Coronavirus (COVID-19) was first reported in Wuhan, Hubei, China in December 2019, the outbreak was later recognized as a pandemic by the World Health Organization (WHO) on 11 March 2020.

COVID-19 is caused by the SARS-CoV-2 virus which is a new virus in humans causing a contagious respiratory illness. COVID-19 can present with a mild to severe illness, although some people infected with COVID-19 may have no symptoms at all. Older adults and people of any age who have underlying medical conditions have a higher risk of severe illness from COVID-19.

The SARS-CoV-2 virus can be spread to others not just while one is sick, but even before a person shows signs or symptoms of being sick

How Coronavirus is spread?

Transmission of COVID-19

Person-to-person spread as close contact with infected

The coronavirus is thought to spread mainly from person to person. This can happen between people who are in close contact with one another.

Touching or contact with infected surfaces or objects

A person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes.

Droplets from infected person when they cough or sneeze

The coronavirus is thought to spread mainly from person to person. This can happen between people who are in close contact with one another.

What are the symptoms of COVID-19?

Symptoms of Coronavirus COVID-19

High Fever

High Fever - This means you feel hot to touch on your chest or back (you do not need to measure your temperature). It is a common sign and also may appear in 2-10 days.

Continuous Cough

Continuous cough - This means coughing a lot for more than an hour, or 3 or more coughing episodes in 24 hours (if you usually have a cough, it may be worse than usual).

Difficulty Breathing

Difficulty breathing - Around 1 out of every 6 people who gets COVID-19 becomes seriously ill and develops difficulty breathing or shortness of breath.

Care About Others, Your Family and Yourself

From those who live and work where you do, to your friends and family we are all in this together. Caring begins with others as everyone follows the "Pay It Forward" Concept
  • If you are sick stay home and take prescribed medications to get better, except to get medical care.
  • Cover your mouth and nose with a tissue when you cough or sneeze (throw used tissues in the trash) or use the inside of your elbow.
  • Wear a facemask if you are sick. You should wear a facemask when you are around other people (e.g., sharing a room or vehicle) and before you enter a healthcare provider's
  • Clean and disinfect frequently touched surfaces daily. This includes phones, tables, light switches, doorknobs, countertops, handles, desks, toilets, faucets, and sinks.
  • Stay informed about the local COVID-19 situation's. Get up-to-date information about local COVID-19 activity from public health officials.

Treatment for Coronavirus

To date, there is no vaccine and no specific antiviral medicine to prevent or treat COVID-2019. However, those affected should receive care to relieve symptoms and most patients recover thanks to supportive care

Self Care

If you have mild symptoms, stay at home until you've recovered. You can relieve your symptoms if you:

  • Rest and sleep
  • Keep warm
  • Drink plenty of liquids
  • Use a room humidifier or take a hot shower to help ease a sore throat and cough
Medical Treatments

If you develop a fever, cough, and have difficulty breathing, promptly seek medical care. Call in advance and tell your health provider of any recent travel or recent contact with travelers.

The Common Sense of Dealing with Covid-19

Things to Do and Not Do

Wash Your Hands

Wash your hands regularly to prevent spreading the disease to yourself and others.

Avoid Close Contact

Don't shake hands use the new elbow greeting, or better yet, just say "Hi"

Drink More Water

Water is an amazing hydrator. Drink plenty of water, even if you're not thirsty

Don't Touch Your Face

Don't touch your face until you have thoroughly washed your hands

Use Clean Face Mask

Like wearing sunglasses to protect your eyes, please wear a mask to protect others from your health issues

Avoid Large Groups

Avoid large groups. Doing so greatly increases your chances of acquiring Coronavirus. Stay 6' away.

Coronavirus Resources You Can Use

Resources You Can Trust


If you are familiar with Kurzgesagt – In a Nutshell, you are aware that they make high-quality animated explainer videos.

Play Video

Centers For
Disease Control

Get the Facts About Coronavirus Take steps to care for yourself and help protect others in your home and community.

View Site

National Institutes
of Health

The NIH, is the nation’s medical research agency, making important discoveries that improve health and save lives.

Video Site

World Health

There are many ongoing clinical trials evaluating potential treatments. WHO will continue to provide as it available.

View Site

Texas Department
of Health

The Texas DSHS is working closely with the CDC in responding to the new (COVID‑19) that is causing an outbreak worldwide.

View Site

The City of
San Antonio

The city of San Antonio is providing up-to-the-minute data gathered from these resources for awareness of our citizens.

View Site