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Questions and Answers
What is the combination of ventricular block, pronounced bradycardia, and acute infectious myocarditis likely to lead to?
What is the combination of ventricular block, pronounced bradycardia, and acute infectious myocarditis likely to lead to?
- Cardiac arrest
- Acute heart failure (correct)
- Chronic heart failure
- Atrial fibrillation
What is the primary mechanism of action of dobutamine?
What is the primary mechanism of action of dobutamine?
- Stimulates beta2-adrenergic receptors
- Stimulates beta1-adrenergic receptors (correct)
- Has pronounced bronchodilator activity
- Blocks potassium channels
Which of the following drugs is used to stimulate the heart?
Which of the following drugs is used to stimulate the heart?
- Amiodarone
- Dobutamine (correct)
- Metoprolol
- Atenolol
What is the effect of amiodarone on the action potential of the heart?
What is the effect of amiodarone on the action potential of the heart?
Which of the following groups of medicinal substances is used to treat heart failure?
Which of the following groups of medicinal substances is used to treat heart failure?
What is the primary effect of anaprilin on the heart?
What is the primary effect of anaprilin on the heart?
Which of the following cardiac glycosides is obtained from digitalis?
Which of the following cardiac glycosides is obtained from digitalis?
What is the effect of atropine sulfate on the heart?
What is the effect of atropine sulfate on the heart?
Which of the following drugs is used to treat arrhythmias?
Which of the following drugs is used to treat arrhythmias?
What is the primary effect of isadrine on the heart?
What is the primary effect of isadrine on the heart?