Clinical Laboratory Services 

Learn More at: (805) 434-4501

Fax Orders to: (805) 434-0616

Twin Cities Community Hospital Laboratory is staffed with licensed Clinical Laboratory Scientists and certified phlebotomists.  We offer on site testing for over 200 different tests in chemistry, coagulation, hematology, therapeutic drug monitoring, urinalysis, microbiology and transfusion medicine.  The annual test volume is around 725,000. 

We are licensed by the State of California and annually inspected and accredited by the Joint Commission.



Take advantage of after hours and weekend availability.

Business Hours:

7:00a-7:00p Monday - Friday

8:00a-4:00p Saturday/Sunday

(please go to ER admitting area if the Diagnostic Center is not avalable)



Quick Draw Service

· Quick Draw Service: Your “standing order”, skip the registration process

and come directly to the Lab for Services.


· Standing Orders: Now valid for up to one year.


· 24 hour Hot Line #:  805-434-4501 for specimen collection and

testing information


· Beverage Service: Coffee, bottled water, juices and graham crackers for

your enjoyment.


Frequently Asked Questions

My physician has written an order to have lab tests done, what can I expect?

     When you come to visit the Out Patient Diagnostic Center for lab testing you will start the process with Admitting who will ensure we have all of your correct information.  The lab will then be notified and bring you into one of our two private phlebotomy rooms. 

     A certified phlebotomist will collect the necessary specimens and bring them directly to the lab for testing. For most tests your physician will receive a copy of the results by the end of that day.  

What is fasting and when is it required?

      Certain tests (such as glucose or a cholesterol panel) require fasting. Please consult with your physician if you have any questions regarding fasting before visiting the laboratory.  

      Fasting requires that you do NOT eat or drink anything 12-14 hours before your lab test.  

      However, drinking water is allowed and encouraged. All medications should be taken as usual.

My physician has written an order for a specimen collection, what do I need?

     Specimen containers and instructions are available in the Diagnostic Center for pick up prior to collection during our regular business hours.

Any further questions regarding special speciman collection, please contact us directly at (805) 434-4501