Lesson 1, Topic 1
In Progress

Scenario

April 11, 2024

Laura Piper, CMA (AAMA), has worked at Walden-Martin Family Medical (WMFM) Clinic for 6 years. She has seen many infectious diseases diagnosed over that time. Bacterial and viral infections are common, but Laura also knows that not all microorganisms are bad. Some diseases have been controlled using vaccines. Other infections can be treated with antibiotics. Not all infectious diseases can be treated with antibiotics, and improper use of antibiotics can lead to bacteria that are resistant to those very useful drugs. Laura knows that it is important to identify pathogens quickly so that proper treatment can begin. The identification of pathogens can involve various types of tests, many of which can be performed in the physician’s office laboratory (POL) where she works.
While studying this chapter, think about the following questions:
            • How are microorganisms classified?
            • What are the various bacterial shapes, oxygen requirements, and physical structures?
            • What are different types of pathogens?
            • What are the common methods for the collection and transport of specimens?
            • What are three common tests used for microbiology testing that have been waived by the Clinical Laboratory Improvement Amendments (CLIA)?
            • What are three common CLIA-waived tests used for immunology testing?
            • What is the importance of the Gram stain and acid-fast stains in microbiology?
            • What are common stool-based tests?