Which of the following components is measured in a comprehensive metabolic panel (CMP)?

The correct response highlights the components measured in a comprehensive metabolic panel (CMP). This panel is designed to provide a broad overview of a patient's metabolic status and includes a variety of important measurements.

The CMP specifically assesses electrolytes, glucose, and kidney function – key indicators of a patient's metabolic and overall health. Electrolytes, such as sodium, potassium, and bicarbonate, help maintain fluid balance, nerve function, and muscle contraction. Glucose levels are critical for assessing metabolic processes and diagnosing conditions like diabetes. Additionally, the CMP evaluates kidney function through measurements of blood urea nitrogen (BUN) and creatinine, which are crucial for determining how well the kidneys are filtering waste from the blood.

While troponin levels indicate heart muscle damage and are essential in evaluating cardiac conditions, they are not included in a CMP. The white blood cell count, generally associated with the complete blood count (CBC), focuses on the immune system rather than metabolic processes. Liver enzyme levels are also part of the CMP but do not represent the entirety of what the panel assesses. Hence, the choice encompassing electrolytes, glucose, and kidney function is comprehensive and accurately reflects the purpose of the CMP.