#1
Which of the following drugs is commonly used for the treatment of bradycardia?
Atropine
ExplanationParasympatholytic agent inhibiting acetylcholine receptors.
#2
Bradycardia is defined as a heart rate less than how many beats per minute?
60
ExplanationHeart rate less than 60 beats per minute.
#3
Which of the following is NOT a symptom of bradycardia?
Tachycardia
ExplanationNot a symptom of bradycardia: Tachycardia.
#4
Which of the following drugs is a beta-blocker and can cause or worsen bradycardia?
Metoprolol
ExplanationBeta-blocker with bradycardia as a potential side effect.
#5
Which ion channel blocker is commonly used for treating bradycardia and atrioventricular (AV) block?
Calcium channel blocker
ExplanationUsed for bradycardia and AV block; blocks calcium channels.
#6
Which medication is a commonly used second-line agent for the treatment of symptomatic bradycardia?
Isoproterenol
ExplanationSecond-line agent for symptomatic bradycardia.
#7
Which class of medications is commonly used as first-line therapy for symptomatic bradycardia?
Beta-blockers
ExplanationFirst-line therapy for symptomatic bradycardia: Beta-blockers.
#8
Which of the following drugs is NOT typically used in the acute management of bradycardia?
Amiodarone
ExplanationNot typically used acutely in bradycardia management.
#9
Which of the following drugs is a parasympatholytic agent commonly used in the treatment of bradycardia?
Atropine
ExplanationParasympatholytic agent used in bradycardia treatment.
#10
Which of the following is a potential side effect of atropine, a drug used to treat bradycardia?
Tachycardia
ExplanationPotential side effect: Tachycardia.
#11
What is the primary mechanism of action of atropine in the treatment of bradycardia?
Inhibition of acetylcholine receptors
ExplanationInhibits acetylcholine receptors as the primary mechanism.
#12
In the context of bradycardia, what is the role of a temporary pacemaker?
To provide short-term pacing until a permanent solution can be implemented
ExplanationProvides short-term pacing until permanent solution.
#13
What is the recommended initial dose of atropine for the treatment of symptomatic bradycardia in adults?
0.25 mg
ExplanationRecommended initial dose for symptomatic bradycardia: 0.25 mg.
#14
Which of the following is a potential complication of untreated severe bradycardia?
Ventricular fibrillation
ExplanationPotential complication: Ventricular fibrillation.
#15
Which medication class is contraindicated in the treatment of bradycardia caused by second-degree AV block type II or third-degree AV block?
Atropine
ExplanationContraindicated in AV block: Atropine.