What is the primary diagnostic method for sleep disorders?

Correct answer is C) Polysomnography. Polysomnography is the gold standard diagnostic method for sleep disorders. It involves monitoring various physiological parameters during sleep, such as brain waves, eye movements, heart rate, muscle activity, and respiratory effort. This comprehensive assessment allows healthcare professionals to identify and diagnose different sleep disorders, including sleep apnea, insomnia, and parasomnias. While blood tests, X-rays, and ECGs may be used in specific cases, polysomnography provides a comprehensive evaluation of sleep patterns and is crucial for accurate diagnosis and treatment planning in sleep medicine.