tidal volume

The tidal volume refers to the amount of gas that is inhaled or exhaled each time when breathing calmly. When breathing calmly, the amount of gas inhaled or exhaled each time, the amount of gas is measured by the instrument and compared with the normal range. Determine whether the lung's gas reserve function is abnormal and whether there is a lesion. If the patient has nervousness, strenuous exercise, crying, etc., it needs to be measured after stabilization. Basic Information Specialist Category: Respiratory Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Pay attention to normal eating habits and pay attention to personal hygiene. If the patient has nervousness, strenuous exercise, crying, etc. during the examination, it needs to be measured after stabilization. Normal value Normal adults are about 400-500ml. Clinical significance Abnormal results: Tuberculosis - A chronic infectious disease of the lung caused by Mycobacterium tuberculosis, which is caused by inhalation of a droplet of bacteria that is coughed up by patients with open tuberculosis. There were no obvious symptoms in the early stage. When the disease progresses, there are symptoms such as burnout, hot flashes, weight loss, cough, and hemoptysis. Anti-tuberculosis drugs can be completely cured. Emphysema - a local or prevalent state of the lung that is characterized by dilatation, loss of elasticity, and eventually rupture of the pulmonary vesicles, accompanied by difficulty breathing, dry cough, and often inadequate heart function. Pulmonary edema - fluid exudates enter the alveoli and the interstitial lung. Lung collapse - an airless state of the lungs that occurs as a result of bronchial obstruction or reflexes after abdominal surgery. Pneumonia - A disease of the lung that is characterized by inflammation and consolidation, which in turn is caused by microbes, viruses, chemical irritants or foreign bodies. Pulmonary embolism - small pulmonary vascular embolization is particularly difficult for short-term breathing. Giant pulmonary embolism can suddenly die. Common symptoms include dyspnea, chest pain, hemoptysis, syncope, and some cold limbs and blood pressure. Physical examination shows respiratory frequency, cyanosis, and can hear wet, wheezing and pleural friction sounds, and sometimes lung consolidation or pleural fluid. There may also be tachycardia, galloping, pulmonary heartbeat second heart sound hyperthyroidism, such as right heart failure can have edema, jugular vein engorgement, liver and so on. People who need to be examined: Patients with lung diseases, such as tuberculosis, emphysema, pulmonary edema, lung collapse, pneumonia, pulmonary embolism and other related symptoms. Precautions Forbidden before examination: Pay attention to normal eating habits and pay attention to personal hygiene. Requirements for inspection: 1. The rate of breathing is affected by consciousness. 2. If the patient has nervousness, strenuous exercise, crying, etc., it needs to be measured after stabilization. 3. Patients with irregular breathing and infants should be measured for 1 minute. Inspection process When breathing calmly, the amount of gas inhaled or exhaled each time, the amount of gas is measured by the instrument and compared with the normal range. Determine whether the lung's gas reserve function is abnormal and whether there is a lesion. Not suitable for the crowd Inappropriate crowd: No. Adverse reactions and risks Nothing.