The Nurse Fills the Suction-Control Chamber with Water to the 20-Cm

Multiple Choice

The nurse fills the suction-control chamber with water to the 20-cm line while setting up a water-seal chest drainage system.Which rationale does the nurse use to explain this intervention?

A) Creates a method for counting respirations.
B) Compensates for leaks in tubing connections.
C) Maintains up to 20 cm of intrapleural pressure.
D) Facilitates bubbling for pressure over 20 mm Hg.