EEG testing is used to detect abnormalities associated with which conditions?

• A. Heart rhythm disorders
• B. Epilepsy, tumor, stroke, head injury, or infection
• C. Digestive disorders
• D. Respiratory conditions

Answer: (B)

EEG records the brain’s electrical activity to identify abnormalities in brain function. Abnormal EEG patterns can reflect problems that affect the brain, such as epilepsy, tumors, stroke, head injury, or infection, making this test especially useful for these conditions. For example, epilepsy often shows distinctive spikes or sharp waves on an EEG, while tumors or strokes can cause regional slowing or asymmetry in brain activity. Head injuries and infections can produce diffuse slowing or focal changes depending on the affected areas.

Heart rhythm disorders are diagnosed with an ECG, not an EEG. Digestive and respiratory conditions are evaluated with other tests and imaging, not brain activity recordings.