Fundamentals of ECG & Basic
Dysrhythmias: Part 3 - Treatment &
Pharmacologics|Questions &Rationales
Which of the following is contraindicated for class IV antiarrythmics? -
✔Congestive heart failure
If atropine was ineffective for symptomatic bradycardia, which drug should
be considered? - ✔Epinephrine drip
Which of the following medications vasodilates and relaxes smooth muscle? -
✔Nitroglycerine
What class of antiarrhythmics do the following medications belong to:
propranolol, metoprolol, atenolol, and sotalol? - ✔Class II ???
Which of the following are side effects that may occur with atropine? -
✔Dilated pupils, tachycardia, nausea, and dry mouth
, Which class of antiarrhythmics slows SA node automaticity, AV node conduction,
and shortens the duration of the action potential? - ✔Class I
What is the recommended dose of magnesium sulfate during cardiac arrest? -
✔1.0-2.0 gm diluted in 10 ml of D5W IV/IO push
Which drug has the potential to prolong the QT interval? - ✔Procainamide
Which class of drug is used to treat atrial and ventricular tachycardia or fibrillation? -
✔Class III
The drug Diltiazem is used to slow the ventricular response in atrial flutter and
atrial fibrillation. - ✔True
On the ECG strip, a spike in front of the QRS complex would indicate which type
of pacing? - ✔Atrial
__________ are not an adverse effect of Amiodarone. - ✔Seizures
Which drug decreases automaticity and AV conduction? - ✔Digoxin
What pacemaker malfunction shows spikes on an ECG not followed by a P wave or
QRS complex? - ✔Failure to capture
On the ECG strip, a spike in front of the P Wave would indicate which type of pacing? -
✔Atrial
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