Propranolol Contraindications and Side Effects Quiz
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Questions and Answers

What adverse effect may be caused by α1-blockers in relation to ejaculation?

  • Retrograde ejaculation (correct)
  • Enhanced ejaculation volume
  • Delayed ejaculation
  • Increased libido

How can the exaggerated orthostatic hypotensive response to these drugs be minimized?

  • Taking the drug with a heavy meal
  • Administering the drug in the morning
  • Giving the full dose for the first dose
  • Adjusting the first dose to one-third or one-fourth of the normal dose (correct)

Which of the following is NOT an adverse effect of α1-blockers?

  • Dizziness
  • Retrograde ejaculation
  • Increased energy levels (correct)
  • Nasal congestion

How do β-blockers differ from α1-blockers in terms of postural hypotension induction?

<p>Only β-blockers induce postural hypotension (D)</p> Signup and view all the answers

Which condition may be caused by α1-blockers during intraoperative eye surgery?

<p>Floppy iris syndrome (A)</p> Signup and view all the answers

In hypertensive patients, what improvement may be observed in lipid profiles and glucose metabolism due to these drugs?

<p>Improvement in lipid profiles and glucose metabolism (C)</p> Signup and view all the answers

Which adverse effect is associated with blocking β2 receptors in the lungs?

<p>Bronchoconstriction (A)</p> Signup and view all the answers

What is a contraindication for nonselective β-blockers like propranolol?

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

How does propranolol lower blood pressure in hypertension?

<p>By decreasing cardiac output (D)</p> Signup and view all the answers

What is the primary mechanism through which propranolol reduces chest pain in angina?

<p>Decreasing cardiac output (A)</p> Signup and view all the answers

Why is careful monitoring of blood glucose essential when propranolol is given to a diabetic patient receiving insulin?

<p>Due to risk of hypoglycemia (D)</p> Signup and view all the answers

What action do nonselective β-blockers like propranolol have on the cardiovascular system related to isoproterenol?

<p>Block the actions of isoproterenol (A)</p> Signup and view all the answers

Why is propranolol contraindicated in patients with COPD or asthma?

<p>It exacerbates bronchoconstriction in these patients. (D)</p> Signup and view all the answers

What is the risk associated with abruptly stopping treatment with β-blockers?

<p>Worsening of angina symptoms (B)</p> Signup and view all the answers

How do β-blockers affect glycogenolysis and glucagon secretion?

<p>Decrease glycogenolysis and glucagon secretion (C)</p> Signup and view all the answers

What is one of the major roles of β receptors in mobilizing energy molecules?

<p>Mobilizing free fatty acids for energy production (C)</p> Signup and view all the answers

How do nonselective β-blockers affect lipid profiles in patients?

<p>Increase LDL levels and triglycerides while reducing HDL levels (D)</p> Signup and view all the answers

Why do β-blockers blunt the symptoms of hypoglycemia such as tremor and tachycardia?

<p>By preventing the counterregulatory effects of catecholamines during hypoglycemia (D)</p> Signup and view all the answers

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