NURS 4526 Lecture Notes - Lecture 6: Chest Tube, Suction Pressure, Personal Protective Equipment
Document Summary
E t ube ed rain e s te. Anatomy and physiology of the pulmonary system should be understood before performing this procedure. At end inspiration, pressure decreases to -8 cm. Among the types of cds are dry suction with a traditional water seal, dry suction with a one- way valve, and wet suction with a traditional water seal. These systems use gravity, suction, or both to restore negative pressure and remove air, fluid, and blood from the pleural space or the mediastinum. In addition, they use a one-way mechanism created by a water seal, permitting air and fluid to be removed while preventing backflow into the chest. A cds requires that the pressure within the chest be greater than the pressure within the system. This is accomplished by keeping the drainage unit at least 1 foot below the chest tube insertion site and by keeping the tubing free of dependent loops and obstructions.
