OSMT (Ontario Society of Medical Technologists) Practice Exam

The correct answer highlights key components of a complete blood count (CBC). A CBC is a common test used to evaluate overall health and detect a variety of disorders, such as anemia, infection, and many other diseases. The fundamental components measured in a CBC typically include hemoglobin (Hb), hematocrit (Hct), white blood cell count (WBC), and platelet count (Plt).

Hemoglobin is crucial as it carries oxygen from the lungs to the rest of the body, while hematocrit indicates the proportion of blood that is made up of red blood cells. The white blood cell count provides information on immune function and can indicate the presence of infection or other medical conditions. Platelet count is essential for assessing blood clotting and can help detect conditions related to bleeding or thrombosis.

Thus, this answer encompasses the primary metrics measured in a standard CBC and reflects the test's purpose in providing a comprehensive overview of a patient's hematological status.