Calcium-Channel Blockers in Hypertension
42 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the definition of hypertension?

  • Sustained diastolic blood pressure of less than 90 mm Hg
  • Sustained systolic blood pressure of greater than 140 mm Hg (correct)
  • Sustained systolic blood pressure of less than 140 mm Hg
  • Sustained diastolic blood pressure of greater than 90 mm Hg
  • What are the potential consequences of sustained arterial hypertension?

  • Decreased incidence of coronary disease
  • Lower risk of stroke
  • Reduced risk of renal failure
  • Increased risk of heart failure (correct)
  • What is the purpose of effective pharmacologic lowering of blood pressure?

  • To increase morbidity and mortality rates
  • To prevent damage to blood vessels (correct)
  • To enhance the incidence of renal failure
  • To raise the risk of serious toxicity
  • Why is knowledge of antihypertensive mechanisms and sites of action important?

    <p>To accurately predict efficacy and toxicity</p> Signup and view all the answers

    What is the primary benefit of Dihydropyridines in treating hypertension?

    <p>Greater affinity for vascular calcium channels</p> Signup and view all the answers

    Which class of calcium channel blockers has a higher incidence of adverse effects such as constipation?

    <p>Diphenylalkylamines (Verapamil)</p> Signup and view all the answers

    Why should high doses of short-acting calcium channel blockers be avoided?

    <p>Increased risk of myocardial infarction</p> Signup and view all the answers

    Which class of calcium channel blockers is particularly beneficial in treating hypertension?

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

    What is the primary mechanism through which β-Blockers reduce blood pressure?

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

    Which calcium channel blocker should be avoided in patients with congestive heart failure or atrioventricular block?

    <p>Verapamil (Diphenylalkylamines)</p> Signup and view all the answers

    What is the purpose of adding beta-blockers after improving the treatment with ACE inhibitors or ARBs?

    <p>To achieve optimal cardiac output</p> Signup and view all the answers

    What is the next step if a patient continues to experience symptoms despite optimal doses of ACE inhibitors and beta-blockers?

    <p>Adding spironolactone/eplerenone</p> Signup and view all the answers

    When should sacubitril/valsartan be considered in the treatment process?

    <p>After starting on ACE inhibitors or optimal dose</p> Signup and view all the answers

    What are the final medications added to achieve symptomatic benefit in patients undergoing optimal pharmacologic therapy for high frequency?

    <p>Digoxin and ivabradine</p> Signup and view all the answers

    What is the purpose of adding mineralocorticoid receptor antagonists (spironolactone/eplerenone) in patients with persistent symptoms?

    <p>To achieve further symptomatic improvement</p> Signup and view all the answers

    When should diuretics be added in the treatment process for patients with persistent symptoms?

    <p>Once symptoms persist despite ACE inhibitors and ARBs</p> Signup and view all the answers

    What is the reason for starting aldosterone antagonists in patients with continuing symptoms despite optimal doses of ACE inhibitors and beta-blockers?

    <p>To improve exercise tolerance</p> Signup and view all the answers

    When would sacubitril/valsartan be considered as a replacement for ACE inhibitors or ARBs?

    <p>Once symptoms persist despite optimal therapy</p> Signup and view all the answers

    Which class of drugs blocks the conversion of angiotensin I to angiotensin II?

    <p>ACE inhibitors</p> Signup and view all the answers

    Which ACE inhibitor does not undergo hepatic conversion and is preferred in severe hepatic impairment?

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

    Which class of drugs blocks the effects of angiotensin II on the body?

    <p>ARBs (Angiotensin II Receptor Blockers)</p> Signup and view all the answers

    Which class of drugs is fetotoxic?

    <p>ARBs (Angiotensin II Receptor Blockers)</p> Signup and view all the answers

    Which class of drugs is contraindicated during pregnancy?

    <p>Renin Inhibitors</p> Signup and view all the answers

    Which ACE inhibitor does not require dose adjustment in patients with renal impairment?

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

    What is the first-line treatment for hypertension recommended for patients with a history of coronary disease, diabetes, stroke, heart failure, myocardial infarction, or chronic kidney disease?

    <p>ACE inhibitors</p> Signup and view all the answers

    What is the primary action of ACE inhibitors in the body?

    <p>Decreasing sodium and water retention</p> Signup and view all the answers

    Which medication class affects both cardiac preload and afterload, reducing cardiac work?

    <p>Beta-blockers</p> Signup and view all the answers

    What is a common side effect of ACE inhibitors?

    <p>Dry cough</p> Signup and view all the answers

    Which medication class is recommended for treating hypertension based on evidence from placebo-controlled studies that they reduce cardiovascular events?

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

    What is the primary action of ARBs in the body?

    <p>Blocking the action of angiotensin II</p> Signup and view all the answers

    Which medication class is recommended for patients with a history of coronary disease, diabetes, stroke, heart failure, myocardial infarction, or chronic kidney disease based on the text?

    <p>ACE inhibitors</p> Signup and view all the answers

    Which medication class is known to cause hypotension in hypovolemic states as a common side effect?

    <p>ACE inhibitors</p> Signup and view all the answers

    For which condition are beta-blockers recommended as a first-line treatment according to the text?

    <p>Heart failure</p> Signup and view all the answers

    Which class of medication is primarily beneficial in hypertensive patients with heart disease, including supraventricular tachyarrhythmia, previous myocardial infarction, angina pectoris, and chronic heart failure?

    <p>β-blockers</p> Signup and view all the answers

    Which type of medication undergoes extensive first-pass metabolism, is orally active, and takes several weeks to develop its full effects?

    <p>β-blockers</p> Signup and view all the answers

    Which class of medication blocks α1 adrenoceptors, decreasing peripheral vascular resistance and lowering arterial blood pressure?

    <p>α-adrenoreceptor–blocking agents</p> Signup and view all the answers

    Which class of medication relaxes smooth muscle, decreasing peripheral vascular resistance and increasing cardiac output?

    <p>Direct-acting vasodilators</p> Signup and view all the answers

    What medication is initiated for relief of volume overload symptoms in the classification of heart failure stages?

    <p>Loop diuretics</p> Signup and view all the answers

    Which medication can replace ACE inhibitors or ARBs for symptomatic benefit in patients who remain symptomatic despite optimal doses of these medications?

    <p>Sacubitril/valsartan</p> Signup and view all the answers

    What medication is added for symptomatic benefit only in patients already on optimal heart failure pharmacotherapy?

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

    What is a common adverse effect of β-blockers?

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

    What is a common adverse effect of α-adrenoreceptor–blocking agents?

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

    Study Notes

    • The primary therapeutic benefits of β-blockers are in hypertensive patients with heart disease, including supraventricular tachyarrhythmia, previous myocardial infarction, angina pectoris, and chronic heart failure.
    • β-blockers undergo extensive first-pass metabolism, are orally active, and take several weeks to develop their full effects.
    • Common adverse effects of β-blockers include bradycardia, CNS side effects (fatigue, lethargy, insomnia, hallucinations), and hypotension.
    • α-adrenoreceptor–blocking agents like prazosin, doxazosin, and terazosin block α1 adrenoceptors, decreasing peripheral vascular resistance and lowering arterial blood pressure.
    • Direct-acting vasodilators such as hydralazine and minoxidil relax smooth muscle, decreasing peripheral vascular resistance and increasing cardiac output.
    • Heart failure can be classified into four stages; as it progresses, polytherapy is initiated, starting with loop diuretics for relief of volume overload symptoms.
    • ACE inhibitors or ARBs are added after diuretic optimization, followed by β-blockers, aldosterone antagonists, and hydralazine/isosorbide dinitrate.
    • Sacubitril/valsartan can replace ACE inhibitors or ARBs for symptomatic benefit in patients who remain symptomatic despite optimal doses of these medications.
    • Digoxin and ivabradine are added for symptomatic benefit only in patients already on optimal heart failure pharmacotherapy.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge about calcium-channel blockers, a recommended treatment option in hypertensive patients with diabetes or angina. Learn about the classes of calcium-channel blockers and their potential risks and benefits.

    More Like This

    Antihypertensive Drugs
    65 questions

    Antihypertensive Drugs

    IndulgentChaparral avatar
    IndulgentChaparral
    Traitement de l'hypertension
    18 questions
    Drugs for Hypertension Treatment
    10 questions
    Use Quizgecko on...
    Browser
    Browser