To provide consistent suction for the patient, a dry suction system employs a self-controlled regulator that regulates the amount of suction and responds to air leakage.
The drainage unit's suction should be set to the recommended level, as shown below. Suction is not always necessary since it might cause tissue damage and prolong an air leak in some individuals.
Dry suction control systems have several advantages: they can attain greater suction pressure levels, they are simple to set up, and there is no fluid to evaporate, which would reduce the amount of suction administered to the patient.
In principle, suctioning a chest tube aids in pleural apposition and hence aids in sealing.
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