#1
Which of the following is NOT a common cause of bradycardia?
Hyperthyroidism
ExplanationHyperthyroidism usually causes tachycardia, not bradycardia.
#2
What is the typical heart rate threshold defining bradycardia in adults?
Less than 60 beats per minute
ExplanationBradycardia is typically defined as a heart rate less than 60 beats per minute in adults.
#3
Which of the following is a potential complication of untreated bradycardia?
Atrial fibrillation
ExplanationUntreated bradycardia can lead to atrial fibrillation as a potential complication.
#4
What is the initial step in assessing a patient with suspected bradycardia?
Assessing airway, breathing, and circulation
ExplanationThe initial step in assessing a patient with suspected bradycardia is to assess airway, breathing, and circulation.
#5
Which of the following symptoms is NOT commonly associated with bradycardia?
Palpitations
ExplanationPalpitations are not commonly associated with bradycardia.
#6
Which medication is commonly used for acute symptomatic bradycardia?
Atropine
ExplanationAtropine is commonly used for acute symptomatic bradycardia to increase heart rate.
#7
What is the primary intervention for symptomatic bradycardia with poor perfusion?
Transcutaneous pacing
ExplanationTranscutaneous pacing is the primary intervention for symptomatic bradycardia with poor perfusion.
#8
Which heart rhythm is commonly associated with sinus bradycardia?
Normal sinus rhythm
ExplanationSinus bradycardia is commonly associated with a normal sinus rhythm.
#9
What is the primary treatment goal in managing bradycardia?
To increase heart rate
ExplanationThe primary treatment goal in managing bradycardia is to increase heart rate.
#10
Which autonomic nervous system branch primarily influences heart rate?
Parasympathetic nervous system
ExplanationThe parasympathetic nervous system primarily influences heart rate.
#11
What is the recommended first-line treatment for stable bradycardia?
Observation and outpatient follow-up
ExplanationStable bradycardia may be managed with observation and outpatient follow-up as the first-line treatment.
#12
Which medication class is commonly used for long-term management of bradycardia?
Beta-blockers
ExplanationBeta-blockers are commonly used for the long-term management of bradycardia.
#13
What is the recommended initial pacing rate for transcutaneous pacing in a bradycardic patient?
60-70 beats per minute
ExplanationThe recommended initial pacing rate for transcutaneous pacing in a bradycardic patient is 60-70 beats per minute.
#14
Which of the following is a common symptom of bradycardia in athletes?
Fatigue
ExplanationFatigue is a common symptom of bradycardia in athletes.
#15
Which diagnostic test can help identify the underlying cause of bradycardia, such as structural heart disease?
Echocardiogram
ExplanationAn echocardiogram can help identify the underlying cause of bradycardia, including structural heart disease.