nasal function test

The nose is the beginning of the respiratory tract and purifies the inhaled air and regulates its temperature and humidity. It is the most important olfactory organ and can also assist in pronunciation. Nasal function tests include respiratory function tests and olfactory tests. Basic Information Specialist classification: otolaryngology examination classification: biochemical examination Applicable gender: whether men and women apply fasting: not fasting Tips: olfactory examination should avoid the use of strong stimulating mint, ammonia and so on. Normal value Respiratory function test Nasal ventilation is good, breathing sound and airflow are normal, and the olfactory examination can identify liquids of various odors. Clinical significance The low sensitivity of breathing and airflow abnormalities or olfactory may be due to a cold or rhinitis. Precautions Requirements for examination: olfactory examination should avoid the use of pungent strong mint, ammonia, etc., because it can directly stimulate the trigeminal nerve and mistaken for smell. In the inspection, you should take a break between the appropriate time. Inspection process (A) respiratory function test: generally through the nose of the nose can be roughly judged nasal ventilation. You can also use your fingers to block the nostrils on the side you are inspecting, use your nose to breathe, smell your breathing, and try your hand to breathe. (2) Olfactory examination method: generally use liquids of various odors, such as vinegar, alcohol, soy sauce, sesame oil, etc., in separate vials of the same color and style, and use water as a control. Let the patient close his eyes and occlude one side of the nostrils with his fingers and inhale to distinguish. It should avoid the use of irritating mint, ammonia, etc., because it can directly stimulate the trigeminal nerve and mistakenly smell. Not suitable for the crowd Inappropriate crowd: None. Adverse reactions and risks No relevant information.