If you’ve ever felt overwhelmed trying to piece together how blood pressure, fluid balance, and heart failure meds all connect, this episode is for you. In this lesson, we’re diving into the RAAS pathway, also known as the renin-angiotensin-aldosterone system, and how this one system plays a major role in so many things you’ll encounter in nursing school and beyond. You’ll learn how RAAS helps regulate systemic vascular resistance and fluid volume, which ultimately impact cardiac output and blood pressure. I’ll walk you through the three main components—renin, angiotensin, and aldosterone—and show you exactly how they interact to keep the body in balance. We’ll also cover the medications that disrupt this pathway, including ACE inhibitors, ARBs, and aldosterone receptor blockers. These are foundational drugs used to treat hypertension and heart failure, and understanding the pathway gives you a deeper understanding of why and how they work. Plus, we touch on the role of pharmacologic angiotensin II in hypotension and septic shock. This episode highlights how mastering one system—just one!—can give you a big-picture view of multiple conditions and treatments. It’s a perfect example of what I teach in my free class, How to Thrive in Nursing School Without It Taking Over Your Life. And if you’re ready to keep building that strong foundation, I’ll also tell you how to join me inside Crucial Concepts Bootcamp. Ready to make the RAAS system finally click? Let’s do it! ___________________ Full Transcript - Read the article and view references FREE CLASS - If all you've heard are nursing school horror stories, then you need this class! Join me in this on-demand session where I dispel all those nursing school myths and show you that YES...you can thrive in nursing school without it taking over your life! Crucial Concepts Bootcamp - Start nursing school ahead of the game, or reset after a difficult first semester with my nursing school prep course, Crucial Concepts Bootcamp. Learn key foundation concepts, organization and time management, dosage calculations, and so much more. Straight A Nursing App - Study on-the-go with the Straight A Nursing app! Review more than 5,000 flashcards covering a wide range of subjects including Fundamentals, Pediatrics, Med Surg, Mental Health, Maternal Newborn, and more! Available for free in the Apple App Store and Google Play Store. Pharmacology Success Pack - Want to get a head start on pharmacology? Download the FREE Pharmacology Success Pack.  Nursing School Thrive Guide - Get the book that many nursing students consider the ultimate survival guide for nursing school! Available in paperback, Kindle and audio formats. 💕Did you love this episode? Please take a moment to follow or subscribe to the show so you never miss an episode! ___________________ The information, including but not limited to, audio, video, text, and graphics contained on this podcast are for educational purposes only. No content on this podcast is intended to guide nursing practice and does not supersede any individual healthcare provider's scope of practice or any nursing school curriculum. Additionally, no content on this podcast is intended to be a substitute for professional medical advice, diagnosis or treatment. Straight A Nursing is a proud member of the Airwave Media Network. Learn more about your ad choices. Visit megaphone.fm/adchoices