Ruminants Anaesthesia Flashcards Preview

NSULA Vet Tech Surgery and Anaesthesia > Ruminants Anaesthesia > Flashcards

Flashcards in Ruminants Anaesthesia Deck (23):
1

How do you decrease risk of regurgitation

decrease rumen size and pressure by withholding food and place et and rumen tubes when appropriate

2

what can a rumen tube help with

avoid bloat and aspiration of rumen contents

3

Why don't we use tranquilizers in food animals

residues in milk and meat products problematic

4

Xylazine IV dose

1/10th IV dose used in horse

moderate dose: 0.01-0.05 mg/lb IV

5

What does Xylazine do

depressed pharyngeal and laryngeal reflexes

allows ET intubation

6

Side effects of Xylazine

- cardiovascular depression
- respiratory depression
- rumen atony with bloat
- premature delivery in late pregnancy

7

Xylazine Antagonists

Atipamezole
Yohimbine
Tolazoline
Doxapram (non-specific respiratory stiumulant)

8

Detomidine or Medetomidine dose

5-10 mcg/lb IM

similar to Xylazine

9

why is ace not frequently used

because of prolonged elimination

10

Side effects of ketamine or telazol

respiratory depression

hypotension

11

Atropine or Glycopyrrolate (anticholinergics) effect saliva and bloat how

Increase viscosity of saliva and increase incidence of bloat

12

when is it necessary to use atropine

to prevent bradycardia with manipulation of viscera

13

when can you mask induce a ruminant

if under 150 lbs

14

what is in the Triple drip and how long does it last

Xylazine- ketamine- guaifenesin combo

15

how long does the triple drip last

30-90 min

16

what does an overdose of the triple drip cause

apnea
hypotension

17

describe the methods of ET intubation

Dental speculum or mouth gag

Method 1: Insert arm  use fingers to reflect epiglottis forward and guide ET into larynx
Method 2: Extend animal’s head and neck  gently advance tube into trachea during inspiration

18

when should you ventilate patient

if procedure last longer than 1 hour

19

describe the position of the eyeball during anesthesia

-Corneal reflex should be present throughout anesthesia

-Palpebral reflex should be depressed by gas anesthesia

-Eyeball rotates
medioventrally in light surgical plane

-Iris and pupil centered when patient is awake or in deep surgical plane

-Dilated pupils are sign of anesthetic overdose with gas anesthesia

20

describe what to do with the ET tube during recovery

-Leave ET tube in place with cuff partially inflated until swallowing to prevent aspiration of regurgitated material
-Position the patient’s head to allow drainage before pulling ET tube
-Leave cuff inflated while ET tube pulled

21

Why should you pass a stomach tube before pulling ET tube

to relieve rumen bloat

22

how can you avoid regurgitation during recovery

position ruminants on their right side or in sternal recumbency once tube pulled

23

name some common anesthetic problems

-Regurgitation
-bloat
-inadequate oxygenation
-injury
-respiratory depression
-apnea
-pulmonary aspiration