What does CBC refer to in laboratory testing?

The term CBC stands for Complete Blood Count. This is a common and essential laboratory test that provides valuable information about the cells in a patient's blood. It measures several components, including red blood cells, white blood cells, hemoglobin, hematocrit, and platelets. Each of these components serves a crucial role in diagnosing various medical conditions, monitoring health status, and guiding treatment decisions.

For instance, a Complete Blood Count can help detect conditions like anemia, infections, and many other disorders by providing insight into the blood's cellular composition. The accuracy and comprehensiveness of CBC make it a foundational test in clinical settings, widely used for routine check-ups as well as in more specific diagnostic evaluations. This is why the correct answer is A.