- Видео 77
- Просмотров 609 593
Dale Button
Канада
Добавлен 29 фев 2016
Hyperkalemia Explained: Pathophysiology of Peaked T-Waves
Discover how hyperkalemia affects the heart and causes distinctive ECG changes, including peaked T-waves. In this video, we break down the cardiac action potential, focusing on phase three, potassium dynamics, and how elevated serum potassium alters resting membrane potentials. Perfect for paramedics, medical students, and clinicians looking to understand the pathophysiology of hyperkalemia. Learn how these changes translate into critical ECG findings!
0:00 - Introduction to Hyperkalemia and ECG Changes
0:08 - Focus on Peaked T-Waves
0:21 - Recognizing Peaked T-Waves on ECG
0:36 - Cardiac Action Potential Overview
1:15 - Phase Three and Potassium Efflux Dynamics
2:00 - Normal vs. Hyperkalemic P...
0:00 - Introduction to Hyperkalemia and ECG Changes
0:08 - Focus on Peaked T-Waves
0:21 - Recognizing Peaked T-Waves on ECG
0:36 - Cardiac Action Potential Overview
1:15 - Phase Three and Potassium Efflux Dynamics
2:00 - Normal vs. Hyperkalemic P...
Просмотров: 71
Видео
REVERT Procedure for SVT: The Science Behind the Modified Valsalva Maneuver
Просмотров 3614 часов назад
This video dives into the REVERT procedure, or modified Valsalva maneuver, and its effectiveness in treating supraventricular tachycardia (SVT). It explains how to identify SVT on an ECG, the pathophysiology of re-entry circuits, and the physiological mechanisms leveraged by the REVERT procedure to terminate SVT. The discussion covers key steps of the maneuver, why it works better than traditio...
Why Hypoxia Causes Bradycardia in Pediatric Patients: The Cardiac & Autonomic Impact Explained
Просмотров 83День назад
In this video, we delve into the reasons why hypoxia can lead to bradycardia in pediatric patients, focusing on the unique aspects of pediatric cardiac physiology and autonomic responses. Unlike adults, children rely heavily on heart rate to maintain cardiac output due to their limited stroke volume, which is less adaptable under stress. Hypoxia disrupts essential cellular functions by reducing...
How Hypoxic Vasoconstriction Leads to Pulmonary Hypertension: A Deep Dive into Causes and Effects
Просмотров 6114 дней назад
In this video, we explore the physiological process of hypoxic vasoconstriction and how it can contribute to pulmonary hypertension. Learn about the short-term adaptive mechanisms and the long-term consequences of this process, including remodeling of vascular smooth muscle and increased pulmonary vascular resistance. Timestamps: 0:01 Introduction to Hypoxic Vasoconstriction 0:15 Purpose of Hyp...
How Calcium Gluconate Stabilizes Heart Cells in Hyperkalemia
Просмотров 17821 день назад
In this video, we delve into how calcium gluconate helps manage hyperkalemia by increasing the membrane threshold potential, stabilizing cardiac cells, and reducing the risk of arrhythmias. We’ll discuss the normal action potential in myocardial cells, the changes that occur with hyperkalemia, and why calcium gluconate is effective in managing these changes. Here’s a breakdown of the topics cov...
Accelerated Idioventricular Rhythms and Reperfusion
Просмотров 82Месяц назад
In this video, we explore reperfusion rhythms in the context of return of spontaneous circulation (ROSC) post-cardiac arrest. We focus on the differentiation between Accelerated Idioventricular Rhythm (AIVR) and Ventricular Tachycardia (VT), examining key features like wide QRS complexes, rate, and P-wave dissociation. By understanding the pathophysiology behind reperfusion rhythms and their be...
Acute Pain Management Strategies and Considerations
Просмотров 1387 месяцев назад
Acute Pain Management Strategies and Considerations
Acetaminophen and NSAID Mechanism of Action for Analgesia
Просмотров 1457 месяцев назад
Acetaminophen and NSAID Mechanism of Action for Analgesia
Stroke Assessment and Los Angeles Motor Score LAMS Pathophysiology
Просмотров 3078 месяцев назад
This video will explain the anatomical function of the MCA as it relates to stroke and the Los Angeles Motor Score.
Pathophysiology and Treatment of COPD
Просмотров 5539 месяцев назад
This video will outline the mechanisms associated with emphysema and chronic bronchitis and front line treatment of COPD exacerbation. 00:00 - Emphysema pathophysiology 07:21 - Chronic bronchitis pathophysiology 11:00 - Oxygen and Ventolin treatment for COPD 13:30 - CPAP treatment for COPD 15:00 - Dexamethasone treatment for COPD
Left Bundle Branch Block Electrophysiology
Просмотров 1,1 тыс.9 месяцев назад
This video outlines the electrophysiological changes seen on a 12-lead ECG for left bundle branch block, and the rationale for these changes.
J-Point Recognition
Просмотров 7209 месяцев назад
This video describes the physiological relevance of the J-point and methods for recognition.
High Yield Assessment for Cardiac Ischemia
Просмотров 30110 месяцев назад
High Yield Assessment for Cardiac Ischemia
Oxytocin Pharmacology and Role in Postpartum Hemorrhage
Просмотров 2,7 тыс.Год назад
Oxytocin Pharmacology and Role in Postpartum Hemorrhage
Pathophysiology of Postpartum Hemorrhage
Просмотров 7 тыс.Год назад
Pathophysiology of Postpartum Hemorrhage
Pathophysiological Risks of Sodium Bicarbonate Administration in Diabetic Ketoacidosis
Просмотров 1,2 тыс.Год назад
Pathophysiological Risks of Sodium Bicarbonate Administration in Diabetic Ketoacidosis
Pathophysiology of Diabetic Ketoacidosis Flowchart
Просмотров 2,9 тыс.Год назад
Pathophysiology of Diabetic Ketoacidosis Flowchart
Pathophysiology of Diabetic Ketoacidosis
Просмотров 2 тыс.Год назад
Pathophysiology of Diabetic Ketoacidosis
Pharmacological Treatment of Hyperkalemia
Просмотров 6 тыс.Год назад
Pharmacological Treatment of Hyperkalemia
Eosinophil Infiltration and Dynamic Hyperinflation in Asthma
Просмотров 396Год назад
Eosinophil Infiltration and Dynamic Hyperinflation in Asthma
Pathophysiology of Cardiogenic Shock
Просмотров 4,9 тыс.Год назад
Pathophysiology of Cardiogenic Shock
Symptomatic Bradycardia - Prehospital Management
Просмотров 500Год назад
Symptomatic Bradycardia - Prehospital Management
Left Main Coronary Artery Occlusion - Pathophysiology
Просмотров 1 тыс.Год назад
Left Main Coronary Artery Occlusion - Pathophysiology
ST Elevation and Reciprocal Depression in STEMI
Просмотров 3,2 тыс.Год назад
ST Elevation and Reciprocal Depression in STEMI
Out of Hospital Cardiac Arrest - Epinephrine and Advanced Airway Management
Просмотров 310Год назад
Out of Hospital Cardiac Arrest - Epinephrine and Advanced Airway Management
Thank you! Very clear concept
You are just amazing ❤ thank you
Thank you. Your videos are very helpful
Sir, your videos are brilliant!!! The way you explain concepts makes it crystal clear.. Please please upload more videos on STEP 1 USMLE content. Thank you
Is this c section or nsd?
Thank you very much sir🫡🫡
Could you cover more ecg’s and videos regarding that? Thank you!
Great video! Love reviewing these topics you make.
What books do u use?
hey Dale thanks for the video It seems you are starting to make video again, I encourage you to keep going. your videos are actually really helpful. more power to you man 💪🥳
could you explain how calcium gluconate increases the threshold potential....I found this part of the video very confusing because you said calcium gluconate increases the membrane potential above the RMP? Then you said calcium gluconate increases the RMP?? Then back to calcium gluconate increases the threshold potential. All around the 7 to 7:30 mark.
You just did it less than30 minutes and it's clear thank you so much🎉🎉❤
Thank you for explaining this. Learning Reperfusion beats in Nursing School and I appreciate how you described it.
Thank you so much Dale! This is exactly the way I learn best. This video has saved me
This is such a well-detailed explanation. Thank you so much!
This video is incredible. You summed up multiple medical school topics in this description. Thank you!
Your explanation of the respiratory system is truly awesome. None of the other videos on youtube come close to how well you teach. Hats off!😊
Hello sir Isn't PR-interval implies current in AV node?
the best explanation; thank you sir !!
Super detailed!
Hello Dale, thank you for your very informative and well illustrative video. I learned a lot. Was wondering if you might look at an EKG of mine. I have a 1 mm negative post positive T wave, it is very brief following a quick return to baseline. It is on lead 1 from a at home ekg/ecg monitor. So only 1 lead (a wearable). Wondering if you might be willing to take a look at it and tell me if you think it is normal, artifact, or early signs of ischemia? Thanks T
Amazing! Thanks so much for this
By far the best video on AVNRT. Thank you
Very helpful video. Thankyou
Thank you ❤
Hyperthermia and hyperpyrexia ? Are these both same ? If no whats difference ? Why are these mechanisms happening ? Thankyou. ( thankyou for great service )
Pardon me if any rudeness in my comment ( am poor in grammer )
Thanks a lot
I have been struggling with this for a while and this is the best explanation I've come across, thank you so much!
Isn’t it that lidocaine blocks the sodium channels in Inactivated state , which means depolarisation has already occurred , so there might be just a small deflection rather than such an appreciable change in slope ??
Best video EVER!!!
Great video I just have one question. Could you explain why the speed of repolarisation i.e epicardial tissue repolarising before the subepicardial tissue dictates the net flow? Thanks
I recently had an experience with heat exhaustion and somehow stumbled upon your video - I've had a lot of teachers/mentors in my life and you are an amazing teacher - wow!
Will atropine work for afib with slow ventricular response?
The best video so farrrrrrrr
This is a masterpiece
Excellent video Nice illustrations Please make videos on other subjects too
🎉🎉🎉🎉great
Thanks alot❤
thank you
Great presentation..Thanks
❤❤
Great video and can you make a video talking about pulmonary emboli plss 🙏❤️
Thank you so much!! I learn so much from all your cardiology videos!!
Very educative video
Beautiful job, very clear - definitely worth the like and subscribe!
Thank you for this video. @7:04 you said that calcium increases the membrane potential. Do you mean it increases the threshold potential?
Thank you!
Great work! Thank you
بسیار عالی👌
Thank you for this informative video. I’ve been having hard abdomen and abdominal pain with no bleeding at 18 weeks. My doctor thinks it can’t be placental abruption but I am still worried.