Determining if a patient has a deviated septum is straightforward when diagnosed by a specialist such as Dr. Chaboki. After discussing your symptoms and medical history, he performs a physical exam of the external and internal nose, cartilage, bone, and mucous membranes. This exam involves a bright light and a nasal speculum (an instrument that gently spreads open your nostrils) and an endoscope (high resolution video camera) to inspect the inside surface of each nostril. An anesthetic nasal spray is used prior to the endoscopic exam to reduce the minimal pressure during examination. Additional testing may be required in some circumstances, such as a CT scan. CT imaging combines special x-ray equipment with sophisticated computers to produce multiple pictures of the internal nose.