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IBHRE CEPS 2024 Exam with correct answers.
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IBHRE CEPS 2024 Exam with correct answers.
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IBHRE CEPS 2024 Exam with correctanswers
Class 1 Anti-Arrhythmic Mechanism - correct answer -Sodium (Na) Channel Blockers
Class II Anti-Arrhythmic Mechanism - correct answer -Beta Blockers
Class III Anti-Arrhythmic Mechanism - correct answer -Potassium (K) Channel Blockers
Class IV Anti-Arrhythmic Mechanism - correct answer -L-Type Calcium (Ca) Channel Blocker
Class Ia drugs - correct answer --Quinidine (rarely used)
-Procainamide
-Disopyramide.
Na Channel blockers that raise APD
Class Ib drugs - correct answer --Lidocaine
-Mexiletine
-Phenytoin
Na Channel blockers that slightly lower APD
Class Ic drugs - correct answer --Propafenone
-Flecainide
Na Channel blockers that don't change APD
, Class II Drugs - correct answer --Propranolol
-Atenolol
-Esmolol
-Metoprolol
Beta-Blockers. (β-blockers)
Class III Drugs - correct answer --Amiodarone
-Dronedarone
-Sotalol
-Ibutilide
-Bretylium
Prolong APD (K Channel Blocker)
Class IV Drugs - correct answer --Verapamil
-Diltiazem
L-Type Ca Channel Blockers
Phase 0 AP - correct answer --Depolarization
-Rapid Na+ Channels are stimulated to open, flooding the cell with positive sodium ions.
-Depolarizatoin of one cell triggers the Na+ channels in surrounding cells to open causing wave of
propogation.
Phase 1 AP - correct answer --Initial Stage of Repolarization
-Inactivation of the fast Na+ Channels
Phase 2 AP - correct answer --Plateau Phase
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