A nurse is caring for a client who is 6 hours post operative and has a chest tube in place that is attached to a closed-chest water-seal drainage system. The nurse should identify that which of the following is an indication of a problem in the drainage system? a) Continuous bubbling in the water seal chamber
b) Gradual rise in the level of drainage in the collection chamber
c) Absence of fluctuation in the water seal chamber during inspiration and expiration
d) Sudden cessation of drainage flow