City Bay Urgent Care is your premier source for drug screenings, blood work, and other lab testing in the San Francisco, CA area. Whether your primary care physician wants to check your cholesterol, your new employer requires you to submit a urine sample, or a specialist needs to see a stable panel before sending you for an MRI, infusion, or other medical treatment, we can help. We even accept walk-ins for your convenience! Our technicians are well-trained, professional, and gentle to help you feel comfortable. When you need prompt and accurate lab testing in San Francisco, visit City Bay Urgent Care.

We offer a variety of on-site laboratory and drug screening services using the latest medical technology to provide fast and accurate results. Through these rapid tests, our medical providers will be able to diagnose with precision and treat you more effectively. We also offer polymerase chain reaction (PCR) lab testing, i.e. DNA testing. 

What Should I Expect from My Lab Test?

If you have never been for a lab test before, you might not know what to expect. Lab tests are administered to diagnose or test for a number of conditions. During your appointment, we will collect a specimen from you: the nature of the specimen will depend on what we are testing for. In some cases you will be asked to provide a small sample of body fluid, such as blood, urine, or saliva; in others, you will need to provide a stool or hair sample. Our professionals will make the collection process as quick and simple as possible while keeping your comfort and dignity intact.

Once we collect your sample, it will be analyzed in a lab. We will have your results ready as quickly as possible. 

Rely On Us For Drug Screening

When you are looking for lab services in the San Francisco, CA area, rely on City Bay Urgent Care. We offer drug screening services to test for a number of controlled substances. If you need to be drug screened for a new job, we can administer the test in a short time and generally, you should have your results within a few days. For more information, call us today.

Your Local Resource for Reliable Lab Testing in San Francisco, CA & the Nearby Area


Alcohol screen

Blood glucose/diabetes 

Complete blood count (CBC)

Comprehensive metabolic panel (CMP)

Drug screening


H. pylori

Lipid panel (total cholesterol, triglyceride, HDL, LDL)


Prostate-specific antigen (PSA)


Rapid human immunodeficiency virus (HIV)

Rapid influenza (Flu)

Rapid mononucleosis (Mono)

Rapid strep

Respiratory syncytial virus (RSV)

Sexually transmitted diseases (STDs)

TB (tuberculosis) skin

Thyroid panel


Urine dipstick



We offer PCR lab testing in the following categories:




Infection Control

Intestinal Pathogens




Respiratory Infections


Vector-Borne Diseases



Skip the wait & visit our walk in clinic today for all your lab testing & drug screenings needs in San Francisco, CA!


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