California Phlebotomy Certification Practice Exam

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Which department is responsible for processing cholesterol, troponin, and HDL blood test results?

Chemistry
Hematology
Microbiology
Immunology

The correct answer is: Chemistry

The department responsible for processing cholesterol, troponin, and HDL blood test results is the Chemistry department. This department specializes in analyzing biochemical substances in body fluids, primarily blood. Cholesterol and HDL (high-density lipoprotein) tests are part of the lipid profile, which assesses cardiovascular health and risk. Troponin tests are crucial for diagnosing myocardial infarctions (heart attacks) since troponin is a protein released when the heart muscle is damaged. Therefore, both types of tests fall under the umbrella of chemical analysis, which involves assessing concentrations of various substances in the blood to provide essential information regarding a patient's health. The other options represent different areas of laboratory testing. Hematology focuses on blood cells and disorders related to them, such as anemia and clotting disorders. Microbiology pertains to the detection of pathogens and infections, involving cultures and sensitivity tests. Immunology is concerned with the immune system and its disorders, including the detection of antibodies and antigens. Each of these departments has specialized functions that do not include the biochemical evaluation of substances like cholesterol or troponin.