[cpap ventilator]adaptive symptoms of cpap ventilator steps for using cpap ventilator
Adaptive symptoms of CPAP machine
The following conditions can be treated with CPAP machine:
1. Sleep apnea Syndrome: CPAP versus obstructive type. It is effective in patients with central and mixed sleep apnea syndrome. It can be used in the family for a long time. also. Patients with severe sleep apnea syndrome before uvulopharyngopharyngeal soft palate plasty or patients with severe sleep apnea syndrome due to hypothyroidism before thyroxine replacement therapy. Short-term use of continuous positive airway pressure therapy. Patients with resistance syndrome can also be treated with continuous positive airway pressure;
2. Chronic bronchitis. Emphysema. Acute exacerbation in patients with cor pulmonale. Respiratory failure occurs. Rehabilitation treatment after the condition is stable;
3. Respiratory failure caused by severe asthma;
4. Acute pulmonary edema. Early adult respiratory distress syndrome;
5. Respiratory failure caused by myasthenia gravis and other neuromuscular diseases;
6. Respiratory insufficiency caused by spinal deformity. Ventilation support during or after anesthesia surgery;
7. It should be used in the transition of weaning from the ventilator.
Contraindications for non-invasive ventilator use
1. Decompensation of cardiac function;
2. Severe arrhythmia;
3. Severe hypotension. In particular, hypotension associated with insufficient intravascular volume;
4. High risk barotrauma;
5. Severe pulmonary disease;
6. Hypoventilation due to OSA;
7. Pneumothorax or mediastinal emphysema;
8. Pulmonary encephalopathy;
9. Head trauma, craniocerebral surgery, Dehydration after pituitary or middle/inner ear surgery.
While usingCPAPventilator. The following side effects may occur: Possible adverse reactions after using the nasal mask and forehead with the ventilator
The pad causes indentation on the face, facial skin redness, and nasal congestion. Dry nose and nosebleeds, dry mouth in the morning, sinus pressure, conjunctivitis, flatulence.
The working principle of CPAP ventilator
The main effects of CPAP ventilator on respiratory physiology are as follows: aspect.
1. Increase pulmonary transpulmonary pressure
CPAP ventilator keeps the airway continuously positive pressure, which can indirectly increase transpulmonary pressure.
2. Dilate alveoli and increase functional residual capacity
CPAP ventilator maintains positive alveolar pressure at the end of breathing, keeps alveoli to a certain extent, and avoids alveolar expansion Collapse, increase functional residual capacity, increase alveolar area, improve lung compliance, reduce intrapulmonary shunt, and improve oxygenation. The CPAP ventilator not only prevents alveoli from collapsing, but also re-expands the collapsed alveoli.
3. Reducing the consumption of pulmonary surfactant (PS)
The alveolar surface area decreases when the alveoli collapse, resulting in increased PS consumption. CPAP ventilator prevents alveolar collapse and reduces PS consumption through continuous positive airway pressure ventilation.
4. Reducing airway resistance
Premature infants’ airways are not fully developed and are prone to collapse during breathing. CPAP can keep the airways in a dilated state. , to prevent the collapse of the respiratory tract in children, reduce the resistance of the entire respiratory tract, and reduce the work of breathing.
5. Reduce work of breathing
CPAP ventilator can expand alveoli, increase functional residual capacity, reduce pulmonary shunt, improve ventilation/blood flow ratio, Effective gas exchange reduces the energy required for breathing exercise and reduces the work of breathing.
6. Increase respiratory drive
CPAP can stabilize the thoracic stent by stimulating the Hering-Bresuer reflex and pulmonary stretch receptors. Prevent the collapse of the thorax, improve the breathing efficiency of the diaphragm, increase the breathing drive of children, and make spontaneous breathing regular.
7. Chest Vibration
The air bubbles produced by the water-sealed bottle or the air-bubble CPAP machine can make the child’s chest vibrate at high frequency, reaching Similar therapeutic effects to high-frequency ventilation.
cpapHow to use the ventilator
1. Adjust CPAP breathing For the initial ventilation of the machine parameters, s or s/t mode should be selected, ipap6~8cmh2o, epap4cmh2o, so that ipap-epap>4cmh2o, otherwise it should be changed to cpap mode. Gradually increase the ipap. When epap is increased, ipap needs to be increased synchronously to keep the ventilation pressure stable.
2. Connect the CPAP ventilator to oxygen and adjust the oxygen flow. Adjust the oxygen flow to about 5l/min, and connect it to the mask connector. Make the patient’s sao2 or pao2 reach 90% or more than 60mmhg, otherwise increase the oxygen flow. As the oxygen flow continues to increase, so does the oxygen concentration in the mask. If the mask is airtight, the change rule is: when oxygen is supplied with oxygen flow rates of 2, 4, 6, 8, and 10l/min, the corresponding oxygen concentrations in the mask are 27%, 34%, 41%, 50%, and 54%, respectively. . It can be abbreviated as 4l/min oxygen flow corresponding to an oxygen concentration of about 35%, and 6l/min oxygen flow corresponding to an oxygen concentration of about 40%.
3. Connect the CPAP ventilator and connect the tubing to the mask.
4. Fix the mask and keep the mask in close contact with the patient’s face to avoid air leakage and make the patient feel comfortable. What to do if the ventilator mask leaks>>
5. Instruct the patient to breathe Instruct the patient to use abdominal breathing. Before non-invasive ventilation treatment, the purpose, meaning and precautions of use must be explained to patients and their families in detail, the basic structure of the mask and the method of taking and wearing the mask must be explained. Gas abdominal breathing exercise. Let patients understand the purpose of treatment, enhance their self-esteem and confidence in overcoming the disease, obtain the active cooperation of patients, and eliminate the fear of patients. This is beneficial to improve the effect of CPAP treatment. Tell the patient that when they need to expectorate sputum, drink water or eat, they can cooperate to remove the mask and allow intermittent rest.
6. Ventilation time The ventilation time should be as long as possible. When the patient’s condition is relieved, the ventilation time can be gradually shortened, and the ventilation pressure can be reduced until it is offline.
7. It must be noted that the machine has no monitoring feedback system, and long-term users should do blood gas analysis regularly. The flexibility and effectiveness of CPAP ventilator application provide physicians and even patients with a direct choice for home treatment, but pay attention to grasp the indications for its application, understand the pathophysiology of respiratory failure, and dynamically observe during the application process. It is the key to using CPAP ventilator well.
Well, the above is the specific operation process of the cpap ventilator. After reading the above steps, I believe that many friends will use cpap ventilator. If there are people with chronic respiratory failure, tuberculosis, asthma or respiratory insufficiency at home, it is best to keep a cpap ventilator at home at all times and learn how to use it. Because people with these diseases sometimes experience emergencies, such as sudden deterioration, and urgently need a cpap ventilator. Don’t let things happen that endanger your family’s life because you don’t have a standing cpap ventilator.
