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</p> Signup and view all the answers

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

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

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

    <p>Bronchoconstriction</p> Signup and view all the answers

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

    <p>Asthma</p> Signup and view all the answers

    How does propranolol lower blood pressure in hypertension?

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

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

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

    Why is propranolol contraindicated in patients with COPD or asthma?

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

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

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

    How do β-blockers affect glycogenolysis and glucagon secretion?

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

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