Class II antiarrhythmics (beta blockers) US Medical PG Flashcards - Medical Study Cards
Master Class II antiarrhythmics (beta blockers) with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Class II antiarrhythmics (beta blockers) Flashcard Deck - 10 Cards
Flashcard 1: The _____ node is particularly sensitive to class II antiarrhythmics (-blockers)
Answer: AV
Flashcard 2: Are -blockers contraindicated in diabetic patients? _____
Answer: No
Flashcard 3: What type of -blocker is metoprolol? _____
Answer: Selective 1 antagonist (cardioselective)
Flashcard 4: Beta-blockers (ex propranolol) can block peripheral conversion of T4 into T3 by inhibiting _____
Answer: 5'-deiodinase
Flashcard 5: Decreased cAMP as a result of class II antiarrhythmics (-blockers) leads to the closure of membrane _____ channels
Answer: Ca2+
Flashcard 6: Metoprolol, propranolol, and esmolol are all examples of class _____ antiarrhythmics
Answer: II
Flashcard 7: vardenafil
Answer: PDE5 inhibitor
Extra: erectile dysfunction patients taking nitrates (lethal hypotension) inhbit phosphodiesterase 5, resulting in increased cGMP and smooth muscle relaxation in corpus cavernosum headache, flushing, impaired blue-green color vision, hypotension, dyspepsia
Flashcard 8: sildenafil
Answer: PDE5 inhibitor
Extra: erectile dysfunction patients taking nitrates (lethal hypotension) inhbit phosphodiesterase 5, resulting in increased cGMP and smooth muscle relaxation in corpus cavernosum headache, flushing, impaired blue-green color vision, hypotension, dyspepsia
Flashcard 9: aspirin
Answer:
Extra: increases permeability of the mitochondrial membrane (incomplete) inhibit oxidative phosphorylation
Flashcard 10: ouabain
Answer:
Extra: inhibits Na+-K+ ATPase by binding to K+ site
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