Examprep Abnormal CVS Flashcards
What can atrial fibrillation be due to?
Multiple re-entrant excitation waves in the atria
In the Vaughan Williams system which category/class does drug Flecainide fall into ?
Class 1c
What condition is likely to cause lower plasma levels of free drug?
Dehydration
What is a feature of moderate hypertension?
Retinal Vein Changes
What disease is generally the cause of diastolic and not systolic heart failure?
Infiltrative disease
Dyspnoea, angina and syncope are characteristic symptoms of what valvular disease?
Aortic Stenosis
Blockage of which coronary artery would cause an inferior infarction?
Right Coronary Artery
What type of shock is caused by systemic bacterial infection (septicaemia)?
Vasodilatory
What is most likely to be the cause of right ventricular dysfunction?
Cardiomyopathy
What is/what property is class IV drugs In the Vaughan Williams system?
- Calcium Channel Blocker
- Reduces conduction predominantly at the AV node
What Beta-blocker causes reduction in cardiac output, decrease in heart rate, bronchoconstriction?
Non-selective B-antagonists ie. propanolol
What beta-blocker causes bronchodilation, increases rate and force of the heart rate?
Non-selective B-agonists ie. adrenaline
What beta-blocker causes increase in heart rate and force of contraction?
Selective B1-agonists ie. dobutamine
In cardiac rehabilitation how long should the conditioning phase be?
20mins
What pharmacokinetic processes affect the half life of a drug?
Distribution, Metabolism, Excretion