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► THIS VIDEO will delve deep into the world of beta-blockers, essential for any nursing student looking to master pharmacology. 📚🩺 The instructor starts by likening beta-blockers to American football players, emphasizing their role as blockers in the sympathetic nervous system. Examples like labetalol, propranolol, atenolol, and metoprolol are highlighted, all of which share the distinctive "olol" ending. The core mechanism of beta-blockers, their action on beta-adrenergic receptors, is dissected with clarity.
As the instructor explains, beta-blockers inhibit sympathetic nervous system stimulation by occupying beta receptors, effectively blocking the action of catecholamines like epinephrine and norepinephrine. Through vivid analogies, viewers grasp how these medications modulate heart rate, explaining the intricate dance between beta 1 and beta 2 receptors in various organs like the heart, lungs, and uterus.
An engaging breakdown of physiological responses to sympathetic stimulation ensues, detailing how beta-blockers alter heart rate, conduction velocity, and vascular tone. 🫀💨 Viewers gain insight into the nuanced effects of beta-blockers on cardiac output and blood pressure regulation, crucial knowledge for managing patients with hypertension and cardiovascular conditions.
The instructor’s teaching style, peppered with relatable anecdotes and mnemonic devices, ensures that complex concepts like glycogenolysis and bronchodilation are digestible. 🧠💡 Students are encouraged to visualize receptor sites, sympathomimetic responses, and medication interactions through a comprehensive chart analysis, reinforcing key takeaways.
Throughout the video, practical implications for patient care are emphasized, with warnings against strenuous activities while on beta-blockers and the importance of medication adherence. 🚫🏋️♀️ Nursing students are empowered with a deep understanding of beta-blockers, equipping them to provide holistic care and education to patients navigating cardiovascular health challenges.
► THE PROF 👩⚕️
Dr. Rhonda Lawes is a Certified Nurse Educator (CNE), and an Assistant Professor at the University of Oklahoma College of Nursing in Oklahoma, USA. She obtained her PhD in Educational Psychology from Oklahoma State University in 2016. Due to her achievements, she has earned numerous teaching awards. She teaches nursing students how to use the science of cognitive learning to maximize their study effectiveness. Within Lecturio, Dr. Lawes is the Director of Nursing Education Programs, and teaches courses on Pharmacology (Nursing), Medical Surgical Nursing and Pathophysiology. 💉🩺📋
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Disclaimer: Lecturio offers educational content for healthcare students to prepare for exams and/or to review knowledge gained at a Medical School. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment suggestions. Our resources are strictly for educational purposes. Always consult healthcare professionals for medical concerns.
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► CHAPTERS
0:00 Introduction: What are beta blockers?
0:26 Mechanism of action: How do beta blockers work?
2:18 Beta 1 Receptor Sites
3:33 Beta 2 Receptor Sites
6:46 Beta Blockers Responses
16:45 Selective vs. non-selective beta blockers
17:31 Summary and questions
25 июн 2024
