Med-Surg- From Kahn Academy

A patient recovering from a lobectomy has a chest tube attached to a water-seal drainage system. The healthcare provider notices the fluid in the water-seal column has stopped fluctuating. Which of the following would explain why the fluctuations have stopped?

Select all that apply:

  1. The lung has begun to collapse
  2. Positive interplueral pressure has increased
  3. The lung has fully expanded
  4. There may be fibrin clots in the tubing
  5. The drainage system has a leak in it

Answer: 3 and 5

The fluctuation in the water seal (tidaling) occurs as intrapleural pressure changes during inspiration and expiration. There should be patency between the intrapleural space and the chest tube system, so a blockage in the system may cause the tidaling to stop. Gradual reduction of the tidaling is expected as the lung re-expands, and will eventually stop when the lung has re-expanded.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s