17 Questions
What is the primary reason to avoid excessive tachycardia in patients treated with vasopressors or inotropes?
To prevent myocardial ischemia.
What is the primary reason for administering vasopressors via a central vein whenever possible?
To avoid peripheral extravasation.
What is the primary effect of beta-adrenergic receptor stimulation on myocardial oxygen consumption?
Increased myocardial oxygen consumption.
What is the purpose of daily electrocardiograms on patients treated with vasopressors or inotropes?
To screen for myocardial ischemia.
What is the recommended dosage range of phentolamine for local treatment of peripheral extravasation of vasopressors?
5 to 10 mg i.m.
What is the sample size of the randomized trial that compared the frequency of dysrhythmias between patients who received dopamine and norepinephrine?
1679 patients
Which of the following is a potential consequence of peripheral extravasation of vasopressors?
Excessive local vasoconstriction
What is the primary reason for administering vasopressors via a central vein whenever possible?
To minimize the risk of infiltration
Which of the following statements is true regarding the frequency of dysrhythmias in patients who received dopamine and norepinephrine?
Dysrhythmias were significantly more common among patients who received dopamine than among those who received norepinephrine.
What is the primary effect of beta-adrenergic receptor stimulation on myocardial oxygen consumption?
It can increase myocardial oxygen consumption.
What is the potential consequence of peripheral extravasation of vasopressors?
Excessive local vasoconstriction with subsequent skin necrosis.
What is the primary reason for administering vasopressors via a central vein whenever possible?
To avoid peripheral extravasation and subsequent skin necrosis.
What is the primary reason to avoid excessive tachycardia in patients treated with vasopressors or inotropes?
Impaired diastolic filling of the coronary arteries.
What is the purpose of daily electrocardiograms on patients treated with vasopressors or inotropes?
To screen for occult ischemia.
What is the recommended dosage range of phentolamine for local treatment of peripheral extravasation of vasopressors?
5 to 10 mg
Which of the following is true regarding the effect of vasopressors on coronary vasodilation?
There is usually coronary vasodilation in response to vasopressors.
What was the percentage of dysrhythmias among patients who received dopamine in the randomized trial?
24.1 percent
Assess your knowledge of cardiovascular pharmacology with this quiz! Test your understanding of the effects of calcium sensitizers and angiotensin II on myocardial contractility and arterial pressure. Explore the clinical utility and potential benefits of these drugs in improving outcomes. Challenge yourself with questions on this topic!
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