15 Questions
What happens when you stimulate Beta 1 receptors?
Increase in heart rate, contractility, and cardiac output
What is a sympathomimetic drug?
Drugs that mimic the sympathetic nervous system 'fight or flight'
What happens when you stimulate Alpha 2 receptors?
Sympathetic outflow reduction/pain relief
What is a catecholamine drug?
Drug that cannot cross the blood-brain barrier
What happens when you stimulate Dopamine receptors at low doses?
Dilation of kidneys
What is a non-catecholamine sympathomimetic drug?
Drug that can be given orally
What happens when you stimulate Beta 2 receptors?
Relaxation of bronchioles
Which medication is indicated for orthostatic hypotension?
Midodrine
Which medication is a selective beta 1 agonist with some central alpha 2 agonist activity?
Dobutamine
Which medication is the first-line treatment for anaphylactic shock and cardiac arrest?
Epinephrine
Which medication is indicated for nasal congestion and as a last choice for hypotension due to shock?
Phenylephrine
Which medication is a potent beta 1 agonist that increases contractility and heart rate?
Dopamine
Which medication stimulates alpha 1 receptors in peripheral arterioles and veins, causing vasoconstriction?
Midodrine
Which medication is indicated for preventing anesthesia-induced hypotension and for asthma?
Ephedrine
Which medication has the potential to cause rebound congestion if used for more than 3 days for nasal congestion?
Phenylephrine
Test your knowledge of cardiotonics with this study guide quiz. Learn about the effects of stimulating alpha 1, alpha 2, beta 1, beta 2, and dopamine receptors on the cardiovascular system.
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