National Board of Chiropractic Examiners (NBCE) Practice Test

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What is a common diagnostic test used to assess the extent of coronary artery disease?

Echocardiogram
Chest X-ray
Coronary angiography
Electrocardiogram

The correct answer is: Coronary angiography

Coronary angiography is a common diagnostic test specifically designed to assess the extent of coronary artery disease. This procedure involves the use of a contrast dye and special X-rays to visualize the blood vessels of the heart. During coronary angiography, a catheter is typically inserted into the coronary arteries, allowing the clinician to directly view any blockages or narrowing in the arteries. It provides detailed images that reveal the severity and location of coronary artery disease, allowing for more informed decision-making regarding treatment options. The other diagnostic tests mentioned, while useful for other assessments, do not provide the same level of detail regarding the specific condition of the coronary arteries. An echocardiogram evaluates heart function and structure using ultrasound, a chest X-ray provides images of the heart and lungs but not specific details about the coronary arteries, and an electrocardiogram measures the electrical activity of the heart, which can indicate issues but does not directly visualize the blood vessels. Thus, coronary angiography remains the gold standard when specifically diagnosing coronary artery disease.