What is ventilatory dysfunction and ventilatory dysfunction

Ventilatory dysfunction mainly includes the following:

1. Patients with obstructive ventilation disorders, such as chronic bronchitis.

Obstructive emphysema and bronchial asthma.

In ictal patients, the expiratory time is prolonged due to airway obstruction, so both are reduced;

2. Patients with restrictive ventilation disorders, such as diffuse pulmonary interstitial fibrosis, extensive pleural hypertrophy adhesions, and thoracic cage.

In patients with spinal deformities, although the airway is not obstructed and the exhaled airflow is not restricted, due to the reduction of the elasticity and compliance of the chest and lungs, the expiratory movement is rapidly weakened and terminated, resulting in the rapid and rapid exhalation of the lung in a very short period of time.

Pulmonary ventilation dysfunction mainly includes the following:

1. Diffusion disorder occurs. Alveolus.

This is caused by a decrease in the area of the membrane and an increase in the thickness of the alveolar membrane.

2. The imbalance of alveolar ventilation to blood flow ratio, that is, partial alveolar hypoventilation and partial alveolar blood flow insufficiency.

3. Anatomical shunt disorder. Pulmonary ventilation refers to being soaked in the pulmonary capillaries.

The process of gas exchange between the blood. When the function of pulmonary ventilation is impaired, the air that enters the alveoli through the lung ventilation cannot reach the carbon dioxide between the pulmonary blood vessels.

exchange, which results in hypoxia and hypercarbonic acid.

a.Diffusion disorder.

b.Alveolar ventilation and blood flow are out of proportion.

c.Xie Xin is splitting the slippery repentance flow increases.

d.Increased functional cavital shunt.

e.Restrictive insufficiency.

Correct answer: ACD

Hypoventilation due to airway narrowing or obstruction and increased airway resistance is called obstructive hypoventilation, and common lesions include inflammation, edema, foreign body, mass compression or obstruction of the airway, and vocal cord paralysis and laryngospasm.

Alveolar hypoventilation caused by reduced alveolar expansion due to decreased dynamics or increased elastic resistance to pulmonary ventilation is called restrictive hypoventilation, which is mainly caused by limited alveolar expansion during inspiration.

Ventilatory dysfunction is divided into: obstructive ventilatory dysfunction and restrictive ventilatory dysfunction.

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There are two types of ventilatory dysfunction: obstructive and restrictive ventilatory dysfunction, bronchial stenosis or spasticity is obstructive, and atelectasis, pleural effusion, thoracic lesions and other restrictions on lung expansion are called restrictive ventilatory dysfunction.

Bronchodilator test: before and after dilating the bronchi with salbutarol and other drugs, compare whether the lung function is improved, if the improvement is positive, it means that the airflow limitation is reversible, and if it is negative, it means that the airflow limitation is irreversible.

Significance: Positive bronchodilator test such as bronchial asthma, negative bronchodilator test such as chronic obstructive pulmonary disease, mild mixed ventilatory dysfunction, negative bronchodilator test.

To put it simply, air is less likely to be exhaled in the lungs than in a normal person. It is usually caused by bronchiole collapse. This leads to CO2 retention, resulting in type 2 respiratory failure.

Analysis: Obstructive ventilatory dysfunction is a symptom of hypoventilation caused by airway obstruction caused by various reasons. Inspiratory dyspnea, cyanosis of the lips, suprasternal fossa and supraclavicular fossa depression during inspiration are called tri-retractions. Suggestions: