Final answer:
To detect abnormalities in brain waves, an Electroencephalogram (EEG) is the most appropriate test, as it records brain wave patterns, a function not served by X-rays, ECGs, or typical MRI scans. Option c.
Step-by-step explanation:
To discover if there are any abnormalities in brain waves, the most suitable diagnostic test is an Electroencephalogram (EEG). Unlike X-rays or an Electrocardiogram (ECG), which are not used for brain wave analysis, an EEG specifically tracks and records brain wave patterns. It is a crucial tool for neurologists when diagnosing conditions related to electrical activity in the brain, such as seizures. While Magnetic Resonance Imaging (MRI) is also useful for analyzing the brain, it provides a detailed image of the brain’s structure through the use of electromagnetic waves to find diseased regions or to measure changes in the tissue, but does not record electrical activity like an EEG does.
Therefore, for checking brain wave activity, an EEG is the most appropriate choice. Other diagnostic tests mentioned in the options, such as X-ray of the skull, Electrocardiogram (ECG), and Magnetic resonance imaging (MRI), are not specifically designed to measure brain wave activity and may not provide detailed information about brain abnormalities.