BVetMed3: Equine Arrhythmias

Description

Graduate Accelerated Veterinary Medicine (Cardiovascular) Quiz on BVetMed3: Equine Arrhythmias, created by Marina Martins on 11/04/2019.
Marina Martins
Quiz by Marina Martins, updated more than 1 year ago
Marina Martins
Created by Marina Martins over 5 years ago
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Resource summary

Question 1

Question
The cardiac form of white muscle disease mainly affects
Answer
  • Neonates
  • Older horses
  • Highly active horses
  • Older males

Question 2

Question
A 3 month old foal is brought in to the clinic. It is dyspnoeic, has an irregular heart rate and its blood values come back with low glutathione peroxidase and selenium levels. This foal likely has
Answer
  • cardiac form of nutritional myodegeneration
  • skeletal muscle form of nutritional myodegeneration
  • First degree AV block
  • Second degree AV block

Question 3

Question
Which of the following are released into the circulation with myocardial cell death and are indicators of myocarditis or myocardial necrosis?
Answer
  • Creatinine Kinase (CK)
  • Lactate Dehydrogenase (LDH)
  • Selenium
  • Glutathione peroxidase
  • Cardiac Troponin I

Question 4

Question
In conventional ECG of horses, you typically put the positive electrode on the
Answer
  • left apex
  • right apex
  • left base
  • right base

Question 5

Question
In conventional ECG of horses, you typically put the negative electrode on the
Answer
  • Left apex
  • Left base
  • Right apex
  • Right base

Question 6

Question
Which type of atrioventricular block is always pathological?
Answer
  • First degree
  • Second degree
  • Third degree

Question 7

Question
What is the most common pathological arrhythmia in horses?
Answer
  • Atrial Fibrillation
  • Second degree AV block
  • Third degree AV block
  • First degree AV block
  • Ventricular premature contractions
  • Atrial premature contractions

Question 8

Question
Which type of AV block has P waves that are normal shaped, occur at the expected time but without associated QRS complexes?
Answer
  • First degree AV block
  • Second degree AV block
  • Third degree AV block

Question 9

Question
What type of equine arrhythmia is this?
Answer
  • First degree AV block
  • Second degree AV block
  • Third degree AV block
  • Atrial fibrillation
  • Atrial premature contractions
  • Ventricular premature contractions
  • Ventricular tachycardia

Question 10

Question
Which of the following does not typically initiate atrial fibrillation?
Answer
  • atrial enlargement
  • ventricular septal defect
  • high vagal tone
  • fast SA node rate
  • variable refractory periods

Question 11

Question
What type of cardiac rhythm would you expect with atrial fibrillation?
Answer
  • Irregularly irregular
  • Regularly irregular
  • Regularly regular

Question 12

Question
What is not typically a characteristic of an ECG of atrial fibrillation?
Answer
  • no p waves
  • f waves
  • regularly irregular rhythm
  • random depolarisation of AV node

Question 13

Question
Which of the following horses with atrial fibrillation would you prescribe quinidine sulphate for?
Answer
  • an older, retired horse where atrial fibrillation is an incidental finding
  • an active racehorse with exercise intolerance
  • an older racehorse in early heart failure

Question 14

Question
Which of the following is FALSE regarding atrial premature contractions
Answer
  • Normally occur during exercise
  • Rarely require therapy as long as ventricular rate is also no increased
  • Most are idiopathic
  • The frequency increases in the recovery phase after strenuous exercise

Question 15

Question
What type of arrhythmia is shown in this ECG?
Answer
  • Second degree AV block
  • First degree AV block
  • Third degree AV block
  • Atrial premature contractions
  • Ventricular premature contractions
  • Ventricular tachycardia

Question 16

Question
What is the drug of first choice under anaesthesia for ventricular arrhythmias?
Answer
  • Magnesium sulphate
  • Lidocaine
  • Propanolol
  • Procainamide
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