#488: The Perfusion Problem: Why Your Patient is Deteriorating

#488: The Perfusion Problem: Why Your Patient is Deteriorating

Author: Maureen Osuna, MSN, RN - Nursing school educator, author, and nursing student enthusiast. May 21, 2026 Duration: 51:15
You know that moment when you walk into a patient’s room and something just feels… off? Not wrong in a pull-the-crash-cart way. Just… different. Their blood pressure is trending down a little. They’re not quite as sharp as they were two hours ago. Urine output isn’t great. And your brain starts doing that scrambling thing — flipping through every diagnosis you’ve ever learned, trying to figure out what category this falls into. Here’s the thing: that scrambling feeling? It’s not a sign that you don’t know enough. It’s a sign that you’re trying to find the diagnosis before you’ve found the pattern. This episode is about the pattern.   Perfusion is one of those foundational concepts that shows up everywhere — cardiac, renal, neuro, sepsis, shock — and yet it rarely gets taught the way it needs to be. Not just “perfusion means blood flow” but what actually happens when it fails, how your patient’s body responds, and what that looks like when you’re standing at the bedside at 10am wondering if you need to make a phone call. In this episode, we go deep. Like, actually deep — the cellular level, the four components of the delivery system, why blood pressure is often the last thing to drop, all four shock types through one unified framework, and three clinical cases that will change how you think about patient assessment.   By the end, you’ll have a question you can ask about any patient that will immediately anchor your thinking and help you catch deterioration earlier than you thought possible.   Ready to think like a nurse? Hit play.   👉 If this episode helps you see patient assessment differently, the Nursing School Survival Blueprint is a great next step. It’s the free guide that shows you exactly how to build the kind of structured, clinical thinking that makes episodes like this click — and stick. Get the Blueprint ___________________ Full Transcript - Read the article and view references Related Episodes: Non-Sepsis Reasons for an Elevated Lactate - Episode #167 Distributive Shock Simplified - Episode 346 💕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

Maureen Osuna, known to many as Nurse Mo, brings her experience as a nursing school educator and her genuine enthusiasm for student success to every episode of Straight A Nursing: Study for nursing school exams & NCLEX. She understands that feeling of sitting in a lecture where the concepts just aren't clicking, or the overwhelm that comes from a mountain of complex material. That's precisely where this podcast steps in. Maureen dedicates each session to breaking down those challenging nursing school topics-from pharmacology to pathophysiology-into clear, manageable explanations that actually stick. You'll hear practical strategies for studying more effectively, not just harder, with the direct goal of performing better on your course exams and ultimately, the NCLEX. It's about building a foundation of real understanding that translates directly to clinical confidence, so you can move from anxiety to assurance at the bedside. Tune in for a supportive, expert-guided resource that feels like having a knowledgeable mentor right in your ear, helping you navigate the demanding journey of nursing education one clear concept at a time.
Author: Language: English Episodes: 100

Straight A Nursing: Study for nursing school exams & NCLEX
Podcast Episodes
ENCORE! #279: Bone Marrow Transplant Nursing Guide [not-audio_url] [/not-audio_url]

Duration: 45:38
Every other week I'm republishing one of my most popular or impactful episodes from my backlog of over 450 episodes. This week I'm highlighting Episode 279, which is all about bone marrow transplants. ___________________…
#468: PodQuiz - Groin Management [not-audio_url] [/not-audio_url]

Duration: 9:20
It’s PodQuiz Monday! Test your knowledge from last week’s episode on groin management after femoral access with a quick set of audio flashcards designed to reinforce what you learned. These mini-reviews are a great way t…
#467: Groin Management After Femoral Access [not-audio_url] [/not-audio_url]

Duration: 40:33
Groin management is nurse-lingo for the care required after femoral artery or vein access, such as following a cardiac catheterization or interventional radiology procedure. In this episode, we focus specifically on nurs…
#466: MMM - What is a TR Band? [not-audio_url] [/not-audio_url]

Duration: 11:10
Let's start your week strong with a quick tip you can incorporate right away. In this Mo's Monday Minute shortie episode, I'm giving you a quick overview of TR Bands. ___________________ FREE CLASS - If all you've heard…
ENCORE! #410: Postoperative Pediatric Airway Emergencies [not-audio_url] [/not-audio_url]

Duration: 37:08
Every other week I'm republishing one of my most popular or impactful episodes from my backlog of over 450 episodes. This week I'm highlighting Episode 410, which is all about post-op pediatric airway emergencies. You do…
#465: PodQuiz - Tonsillectomy & Adenoidectomy [not-audio_url] [/not-audio_url]

Duration: 9:55
It’s PodQuiz Monday! Test your knowledge from last week’s episode with a quick set of audio flashcards designed to reinforce what you learned. These mini-reviews are a great way to study on the go, and they give you a ta…
#464: Why Tonsillectomies Keep Nurses on Their Toes [not-audio_url] [/not-audio_url]

Duration: 27:30
Tonsillectomy and adenoidectomy (T&A) is one of the most common pediatric surgical procedures, but don’t let the word routine fool you. Because this surgery directly involves the airway and carries a real risk of post-op…
#463: MMM - What a "shift to the left" actually means [not-audio_url] [/not-audio_url]

Duration: 8:39
Let's start your week strong with a quick tip you can incorporate right away. In this Mo's Monday Minute shortie episode, I'm breaking down what a "shift to the left" means, including why it happens, your nursing priorit…
#462: PodQuiz - Le Fort Osteotomy [not-audio_url] [/not-audio_url]

Duration: 7:39
It’s PodQuiz Monday! Test your knowledge from last week’s episode with a quick set of audio flashcards designed to reinforce what you learned. These mini-reviews are a great way to study on the go, and they give you a ta…