Respiratory

Question 1

What is the difference between a tracheobronchial lavage/wash and a bronchoalveolar lavage? When might a tracheobronchial lavage be preferred?

Answer 1

Tracheobronchial = Assesses upper airway exudate and cellular population
Bronchoalveolar - Lower airway.
Tracheobronchial preferred for Rhodococcus in in horses and Bordetella in dogs

Question 2

What are two methods for tracheobronchial lavage?

Answer 2

Catheter passed via mouth or transtracheal approach.

Question 3

Describe a tracheal pouch.

Answer 3

Uses a surgically isolated segment of the trachea with an intact nerve and blood supply. First described in dog, also in ferret.

Question 4

What are the two types of tracheostomies?

Answer 4

Permanent stoma into which a removal tracheostomy tube is inserted - Requires daily management
Permanent tracheostomy where mucosa is showed to skin - Maintenance free

Question 5

What volume of liquid is introduced via bronchoalveolar lavage?

Answer 5

50-300 mL in dogs and swine. Adult human volumes may be 10-300 mL