Electroencephalogram (EEG)
Health Checkups
estimated about CNY 200-500
(estimated about USD 30-70)
30 min
Disclaimer: This site is a medical service platform; some page content is AI-assisted. Health-related information does not constitute medical advice. If you have any questions, please consult a healthcare professional. See full disclaimer
Description
An EEG measures brain activity to help diagnose epilepsy, seizures, sleep disorders, or unexplained confusion; in China, costs typically range ¥200–¥500, and ChinaMedicalHub assists with hospital booking and interpreter support.
Main Uses
EEG is primarily used to diagnose and monitor seizure disorders, evaluate brain function in comatose patients, study sleep disorders, and investigate other conditions affecting the brain such as dementia, head injuries, and infections. It is also used to determine brain death.
Normal Range
A normal EEG (Electroencephalogram) does not have a specific numerical range but is characterized by the presence of typical brain wave patterns. These include alpha, beta, theta, and delta waves, each with their own frequency ranges: Alpha (8-12 Hz), Beta (13-30 Hz), Theta (4-7 Hz), Delta (0.5-3 Hz). The appearance and distribution of these waves vary depending on the patient's age and state (awake, asleep, etc.).
Low Values - Possible Causes
Low amplitude or absence of certain brain waves can be caused by: Hypoglycemia, Sedative medications, Deep anesthesia, Severe hypothermia, Brain atrophy
High Values - Possible Causes
High amplitude or excessive slow waves may indicate: Epileptic activity, Encephalitis, Metabolic encephalopathy, Brain tumors, Cerebrovascular accidents (strokes)
Related Items
Routine Urinalysis
estimated about CNY 200-500
Liver Function Test
estimated about CNY 200-500
Electrocardiogram (ECG) Test
estimated about CNY 200-500
Chest X-ray Examination
estimated about CNY 200-500
Abdominal Ultrasound Examination
estimated about CNY 200-500
Lipid Profile Test
estimated about CNY 200-500