Cardiotonics Study Guide Quiz

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Questions and Answers

What happens when you stimulate Beta 1 receptors?

  • Sympathetic outflow reduction/pain relief
  • Vasoconstriction
  • Relaxation of bronchioles
  • Increase in heart rate, contractility, and cardiac output (correct)

What is a sympathomimetic drug?

  • Drugs that cause vasodilation
  • Drugs that inhibit the sympathetic nervous system
  • Drugs that mimic the sympathetic nervous system 'fight or flight' (correct)
  • Drugs that mimic the parasympathetic nervous system

What happens when you stimulate Alpha 2 receptors?

  • Sympathetic outflow reduction/pain relief (correct)
  • Increase in heart rate, contractility, and cardiac output
  • Vasoconstriction
  • Relaxation of bronchioles

What is a catecholamine drug?

<p>Drug that cannot cross the blood-brain barrier (A)</p> Signup and view all the answers

What happens when you stimulate Dopamine receptors at low doses?

<p>Dilation of kidneys (D)</p> Signup and view all the answers

What is a non-catecholamine sympathomimetic drug?

<p>Drug that can be given orally (A)</p> Signup and view all the answers

What happens when you stimulate Beta 2 receptors?

<p>Relaxation of bronchioles (C)</p> Signup and view all the answers

Which medication is indicated for orthostatic hypotension?

<p>Midodrine (B)</p> Signup and view all the answers

Which medication is a selective beta 1 agonist with some central alpha 2 agonist activity?

<p>Dobutamine (C)</p> Signup and view all the answers

Which medication is the first-line treatment for anaphylactic shock and cardiac arrest?

<p>Epinephrine (C)</p> Signup and view all the answers

Which medication is indicated for nasal congestion and as a last choice for hypotension due to shock?

<p>Phenylephrine (B)</p> Signup and view all the answers

Which medication is a potent beta 1 agonist that increases contractility and heart rate?

<p>Dopamine (B)</p> Signup and view all the answers

Which medication stimulates alpha 1 receptors in peripheral arterioles and veins, causing vasoconstriction?

<p>Midodrine (B)</p> Signup and view all the answers

Which medication is indicated for preventing anesthesia-induced hypotension and for asthma?

<p>Ephedrine (B)</p> Signup and view all the answers

Which medication has the potential to cause rebound congestion if used for more than 3 days for nasal congestion?

<p>Phenylephrine (D)</p> Signup and view all the answers

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