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NUR463 Med Surg HESI GUIDE- Everything 2023 -2024
Med Surg Everything 
 
Chest Tube and Water or Dry Seal Management 
•	Inserted into pleural space to remove air/fluid, restore intrathoracic pressure, allowing lung to reexpand 
•	3 compartments/chambers 
o	Collection chamber (1) 
▪	Air/fluid collected from pleural or mediastinal space 
▪	Fluid remains, air vented to second compartment (water-seal chamber) 
o	Water-Seal chamber (2) 
▪	Contains 2 cm water; prevents backflow; one-way valve 
▪	Fluctuations in water level “tidaling” ...