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1. Arrhythmias result from disturbances in impulse formation or impulse conduction.Which of the following types occurs during exercise or other condition thatincreases SA node firing rate?

A. Sinus bradycardiaB. Sinus tachycardia

C. Atrial tachycardiaD. Sick sinus syndrome

2. When there is uncoordinated atrial depolarization. Which type of arrhythmiaoccurs?

A. AV blocksB. Atrial flutterC. Atrial fibrillationD. Junctional escape rhythm

3. Premature beats are either atrial or ventricular which result from atrial or

ventricular complexes. What diagnostic procedure detects the case? A. EEGB. ECGC. Chest X-rayD. Plasma level drug taken

4. Atrio-ventricular blocks can occur during excessive vagal stimulation. Which tipsthe autonomic balance toward a more dominant vagal influence.Electrophysiological changes occur in what part of the heart?

A. Right & left atria B. Right & left ventriclesC. AV node and bundle of his D. Atrio-ventricular valveC. Atrial fibrillationD. Junctional escape rhythm

5. Class I classification of antiarrhythmic drugs are sodium channel blockers whicheither prolong or shorten action potentials. Which group of drugs prolongs actionpotentials.

A. Quinidine, disopyramide, procalnamideB. Lidocaine, mexiletine, quinidineC. Lidocain, mexiletineD. Flecanide, propatenone

6. Procainamide has extracardiac effects, a ganglion-blocking properties thatreduces peripheral vascular resistance. What would you expect to your patient?

A. HeadacheB. HypotensionC. HypertensionD. Blurring of vision

7. Lidocaine is the agent of choice for termination of ventricular tachycardia andventricular fibrillation. Which of the following is not TRUE to Lidocaine?

A. Must be given parenterallyB. Has a half-life of 1-2 hoursC. In preexisting heart failure lidocaine may cause hypertensionD. There is extensive first-pass hepatic metabolism

8. A 55 year old female patient is treated for an atrial arrhythmia. She complains ofheadache, dizziness, and tinnitus. Which of the following antiarrhythmic drugs isthe most likely cause?

A. VerpamilB. Quinidine

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C. PropanololD. Procainamide

9. A 60 year old female patient is admitted at BMC ER because of developingmyocardial infarction which was relieved after emergency management. Which of

the following drug would be appropriate prophylactic for recurrent infarction? A. QuinidineB. LidocaineC. PropanololD. Procainamide