Some babies may suffer from respiratory failure due to various reasons after birth. If respiratory failure in infants is not treated promptly, it can endanger their life. Therefore, when an infant develops respiratory failure, timely use of a CPAP ventilator is necessary to ensure the infant's safety. So, what is the usage of a CPAP ventilator for newborns like?
1.Prepare the CPAP ventilator for newborns
Install the CPAP ventilator for newborns and check the pipe connections, gas source connections, and humidification.
2.Adjust the parameters of the CPAP ventilator for newborns
The initial pressure is generally 0.390.59 kPa, and the gas flow rate should be greater than three times the ventilation volume, which is 68 mL/kg × breathing rate/min × 3. The gas flow rate is generally 5-7 min, and FiO can be the same before and after using the CPAP ventilator for newborns. After 10-15 minutes, measure the blood gas, monitor vital signs, and observe changes in the patient's condition.
3.Adjustment method of the CPAP ventilator for newborns
If Pa(O2) is still low after using the CPAP ventilator for newborns, gradually increase the pressure by increasing it by a gradient of 0.098-0.196 kPa each time. The highest pressure should not exceed 0.785 kPa. At the same time, the FiO2 can be increased by 0.05-0.10. The pressure can also be kept at 0.49-0.59 kPa and only FiO2 is increased to make Pa(O2) reach 6.7-10.6 kPa.
If Pa(O2) cannot be maintained above 6.7 kPa, mechanical ventilation should be used. If Pa(O2) remains stable, gradually reduce FiO2 by decreasing it by 0.05 each time. When FiO2 is less than 0.3, Pa(O2) still remains at 6.7-10.6 kPa, the pressure can be gradually reduced by a gradient of 0.098 kPa each time until it is reduced to 0.196-0.294 kPa.
4.Withdrawal of CPAP ventilator for newborns
When the pressure of the CPAP ventilator for newborns is 0.196-0.294 kPa, the condition is stable, and the blood gas is normal, the CPAP ventilator can be withdrawn and a hood for oxygen inhalation can be used. The FiO2 can be increased by 0.05-0.10 to maintain normal functional residual capacity and prevent Pa(O2) from decreasing.
According to the patient's condition and blood gas status, slowly reduce FiO2 until breathing in air and remove the hood.
The following conditions are suitable for the use of a CPAP ventilator:
The patient has spontaneous breathing, increased respiratory rate, three-concave sign, groaning, and cyanosis.
Pa(O2) < 6.67 kPa and Pa(CO2) < 7033 kPa when FiO2 > 0.4~0.5.
Chest X-ray shows diffuse decrease in transparency, granular shadow, multiple lung atelectasis, bronchial inflation sign, pulmonary edema, ground-glass changes, and lung expansion insufficiency.
The above is the introduction of the usage of the CPAP ventilator for newborns. I hope this introduction