Final answer:
A Computed Tomography (CT) scan is a medical imaging technique that uses computer-enhanced cross-sectional X-ray images to diagnose different health conditions. Of the options provided, a CT scan is best suited for diagnosing a broken bone due to its ability to capture detailed images of different tissue densities, which include bone structures.
Step-by-step explanation:
A Computed Tomography (CT) scan is a medical imaging technique that uses computer-enhanced cross-sectional X-ray images. It was invented in the 1970s and is based on the principle that, as X-rays pass through the body, they are absorbed or reflected at different levels. The patient lies on a motorized platform while a CT scanner rotates 360 degrees around them, taking multiple X-ray images which a computer then combines into a two-dimensional cross-sectional view ('slice') of the body area under examination.
Given the options of a) Cardiac arrhythmia, b) Broken bone, c) Dental cavity, and d) Hearing loss, a CT scan is best suited for diagnosing a broken bone. This is because the CT's ability to gather detailed images of different tissue densities enables it to accurately visualize bone structure and detect any fractures or breaks. However, please note that for cardiac arrhythmia, auscultation or an electrocardiogram (ECG) may be used; dental cavities typically require a simple dental x-ray, whilst an audiogram might be employed to diagnose hearing loss.
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