Drugs acting on the respiratory system (production animals)

Question 1

The main point of respiratory disease treatment is to

Answer 1

reduce the amount of secretions produced (and their viscocity) and to improve their removal from the resp. system.

Question 2

TTL

Answer 2

transtracheal lavage

allows for blind sampling of the larger airways for cytologic and culture analysis.

Question 3

What’s a frequently overlooked factor in animal husbandry that decreases the transmission of disease among animal groups?

other than hygiene, quarantines, sick bays, isolation and avoiding overcrowding.

Answer 3

Keep young and old animals separated and not just by a wall. Best is in different buildings.

Keeping young and old animals within reach of each other contributes to disease spread.

Question 4

Most common viral causes of bo resp. illness (4)

Answer 4

IBR - infectious bovine rhinotracheitis
BRSV - bovine resp. syncytial virus
PIV3 - bovine parainfluenzavirus-3
BVDV - bo. viral diarrhea virus

Question 5

Sampling an ill calf for respiratory pathogens. Sample from where?

Answer 5

Clear, runny snot at the beginning of illness is more likely to yield a positive result when sent for culture/PCR.

When it has turned yellow and thick it indicates that illness is further along and to get an appropriate sample, you should just do BAL instead of a nasal swab.