Diagnostic medical sonographers and cardiovascular technologists and technicians, including vascular technologists, also called diagnostic imaging workers, operate special imaging equipment to create images or conduct tests.
Microbiology includes the study of both bacteria and viruses. Many tests in microbiology have been traditionally manual procedures. While some tests such as a rapid Strep or influenza screen can be done in 15-20 minutes, some cultures may take several days or even weeks depending on how fast the organisms grow.his section is also highly automated. The tests performed include hemoglobin, white blood cell counts, red blood cell counts, and white cell differentials, which tell the medical provider what types of white cells, are present in the patientâs blood.
Why a CEA test is done. A CEA test may be done to: 1  help diagnose and monitor a personâs response to treatment for certain cancers. 2  It is most commonly used for colorectal cancer.hy a CEA test is done. A CEA test may be done to: 1  help diagnose and monitor a personâs response to treatment for certain cancers. 2  It is most commonly used for colorectal cancer.