Pharmacology CVR FINAL MIDTERM EXAM WITH WELL DETAILED QUESTION & ANSWERS PERFECTLY A+ GRADED NEW 2025 UPDATE

Pharmacology CVR FINAL MIDTERM EXAM WITH WELL
DETAILED QUESTION & ANSWERS PERFECTLY A+
GRADED NEW 2025 UPDATE




Class I (Na+ channel blocker) Drugs CORRECT ANSWER>>>>Quinidine

Procainamide

Disopyramide

Lidocaine

Flecainide

Propafenone



Strongest Na+ channel blockers CORRECT ANSWER>>>>Flecainide

Propafenone



MOA Na+ channel blockers CORRECT ANSWER>>>>Block voltage gated Na+ channels -
> inhibit phase 0 depolarization



Quinidine is more toxic than CORRECT ANSWER>>>>Procainamide

, Procainamide is 2nd choice for CORRECT ANSWER>>>>ventricular arrhythmias
associated with acute MI



1st choice for ventricular arrhythmias associated with acute MI CORRECT
ANSWER>>>>Amiodarone



Which drug class produces QT, PR, and QRS prolongation? CORRECT
ANSWER>>>>Class I (Na+ channel blockers)



Which drug causes the Lupus-like triad? CORRECT ANSWER>>>>Procainamide



Myasthenia gravis, 3rd Degree heart block, and prolonged QT are contraindicated for
CORRECT ANSWER>>>>Na+ channel blockers



1st line treatment for ischemic ventricular arrhythmias but not useful for atrial arrhythmias
CORRECT ANSWER>>>>Lidocaine (weak Na+ channel blocker)



Amiodarone drug classification CORRECT ANSWER>>>>Class III - Potassium channel
blocker (multi-channel blockade)



Which drug is contraindicated if co-administering drugs metabolized by P450 system?
CORRECT ANSWER>>>>Lidocaine



Which Na+ blocker can lead to seizures due to its involvement with the P450 system?
CORRECT ANSWER>>>>Lidocaine