Certified Dietary Manager (CDM) Practice Exam

The correct answer is that a blood glucose test measures the amount of glucose in the blood. This test is crucial for diagnosing and managing conditions related to glucose metabolism, such as diabetes. It provides a direct reading of the concentration of glucose, which is an important source of energy for the body. Monitoring blood glucose levels helps healthcare professionals assess a person's overall metabolic health and determine if medication or dietary adjustments are necessary.

The other options relate to different medical evaluations. Cholesterol levels are assessed with a lipid panel, infections may be identified through various blood tests, such as complete blood counts or specific assays, and oxygen levels are typically measured using a pulse oximeter or arterial blood gas analysis. Each of these tests serves a distinct purpose in healthcare, but they are not what is being evaluated in a blood glucose test.