TB Testing


Tuberculosis is a bacteria-caused pulmonary infection that is spread through the air when an infected individual coughs, sneezes, speaks or sings. This type of person-to-person contact can expose an individual to the disease, but exposure does not always mean he or she will show symptoms. Those infected with TB bacteria are not always visibly sick, but they may still need treatment to prevent the disease from developing in the future. If the infection does become active, the infected person will then become contagious and exhibit symptoms including a bad cough, pain in the chest, coughing up blood or sputum, fatigue, weight loss and fever.Tuberculosis is airborne and highly contagious. For this reason, TB tests are a requirement for occupations working with children, large groups of people or people with weakened immune systems.


Childcare workers, teachers, health care workers, home health aides, laboratory workers, and EMT and Health Care students, are some of the most common occupations and individuals where a tuberculosis test is required for employment and or compliance.

Testing for Tuberculosis Infection


This test consists of the patient receiving a shot under the top layer of skin on their forearm. The PPD-implant contains Tuberculosis antigens called purified protein derivatives (PPD) – if the patient has been exposed to the tuberculosis bacteria, a firm red bump will develop at the point of the injection within two days. A second appointment will be needed to examine the patients injection site and record the findings. A Negative reading means no further action is necessary. A Positive finding does not mean the patient has TB but will require the patient to get further examination by having a TB Blood Test done or a Chest Xray to determine is the reading was merely a False/Postive result or an actual case of TB Disease.


      There are two main reasons for a false positive PPD test result:

– Individuals who received a TB vaccine called bacille Calmette-Guerin (BCG) will almost always test positive with a PPD skin test, and they will require a follow-up chest x-ray or QuantiFERON blood test for confirmation. 

– Individuals who have latent tuberculosis will also test positive for a PPD skin test. Latent tuberculosis is not considered dangerous or contagious, but will report a positive result with the PPD Mantoux test. Just like recipients of the BCG vaccine.


Results Mobile Testing offers both PPD TESTING and access to TB Blood Testing.

Generally the the PPD Skin Test is all that is needed and is more affordable than the TB Blood Test. It is also more accessible since the test does not require a laboratory and allows us to do testing in various locations. It has been used for nearly 100 years around the world. Our professional Mobile Techs provide individuals, organizations and employers with on-site services for a convenient and pleasurable experience. Next day service is usually available!  


For persons requiring the TB Blood Test or an Xray, please see our options Provided under Blood Tests and Xrays.

A TB Test is generally painless. A very small needle is used to inject a small amount of fluid just under the skin until it forms a small bubble. 

Designated Reader Program

You can become a TB Certified Designated Reader for Results Testing!

Please follow the Links provided for information that is covered in your Exam!  




DOWNLOAD THE GUIDE: How to Read a TB Skin Test



*Please email or fax completed tests to 


Fax: 623.322-9046

Certification Process Fee

is $25.00

DRP Read Chart

& Study Materials

Download our Study Guide and Exam Here.

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