hyperkalemia Archives - Emergency Medicine Cases

ECG Cases 48 – ECG Interpretation in Cardiac Arrest

In this month's ECG Cases blog Dr. Jesse McLaren reviews interpretation of the pre-arrest ECG: identifying high risk ECGs requiring empiric treatment like calcium for hyperkalemia, magnesium for long QT, or reperfusion for Occlusion MI; the intra-arrest ECG: identifying pseudo-PEA; and post-arrest ECG: the importance of serial ECGs to reduce false positive STEMI, role of POCUS to help with the differential of diffuse ST depression with reciprocal ST elevation in aVR, and identifying signs of Occlusion MI/ false negative STEMI...

By Jesse McLaren|2024-02-13T11:44:22-05:00February 13th, 2024|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine|Tags: cardiac arrest, ECG, ECG interpretation, hyperkalemia, occlusion MI, PE, STEMI, tamponade|0 Comments

ECG Cases 44 ECG Interpretation in Epigastric pain, Vomiting

In this ECG Cases blog with Dr. Jesse McLaren we interpret 10 ECG cases and explore cardiac, metabolic and GI causes: We consider anginal equivalents, and look for ECG signs of Occlusion MI, including subacute occlusion from delayed presentations. We consider electrolyte disturbances and look for ECG signs of hyperkalemia or hypokalemia/hypomagnesemia, and we consider the differential of diffuse ST depression with reciprocal ST elevation in aVR, and false positive STEMI...

By Jesse McLaren|2023-08-08T22:28:20-04:00August 8th, 2023|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine|Tags: ECG, ECG interpretation, electrolyte, GI bleed, hyperkalemia, hypokalemia, occlusion MI, pancreatitis, STEMI|2 Comments

Ep 184 Must Know Drug Interactions in Emergency Medicine

We miss potentially dangerous and even lethal drug interactions in EM more often than we realize. In this main episode EM Cases podcast with Dr. David Juurlink and Dr. Walter Himmel we review the common categories of drugs, the high risk patients and the key drug interactions that we need to know about in Emergency Medicine... Please support EM Cases by giving a donation: https://emergencymedicinecases.com/donation/

By Anton Helman|2024-04-02T22:29:39-04:00June 27th, 2023|Categories: Cardiology, EM Cases, Emergency Medicine, Episodes, Medical Specialty, Psychiatry, Toxicology|Tags: antidepressants, antipsychotics, DOACs, hyperkalemia, macrolides, neuroleptic malignant syndrome, NSAIDs, opioids, pharmacodynamics, pharmacokinetics, phosphate binders, QT prolongation, serotonin syndrome, statins|3 Comments

ECG Cases 43 – ECG Interpretation in Shortness of Breath

In this ECG Cases blog we look at 10 patients with shortness of breath, and discuss how the ECG can be used to help diagnose cardiac, respiratory and metabolic emergencies. We discover that for STEMI/OMI vs subendocardial ischemia, we should look for STEMI(-)OMI, subacute OMI, and OMI in the presence of LBBB and RBBB, and consider the differential for diffuse ST depression with reciprocal ST elevation in aVR. For RV strain, acute vs chronic, we should look for signs of acute RV strain and chronic pulmonary hypertension. for low voltages we should consider pericardial effusion and other causes, and for hyperkalemia we should look for multiple signs of hyperkalemia as a guide for empiric calcium...

By Jesse McLaren|2023-06-06T09:45:16-04:00June 6th, 2023|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine|Tags: cardiac tamponade, ECG, ECG interpretation, hyperkalemia, occlusion MI, pericardial effusion, pulmonary embolism, STEMI|0 Comments

ECG Cases 37 ECG interpretation in electrolyte emergencies

While most of us have a clear algorithm in our minds for the management of life-threatening hyperkalemia, the same may not be said about the other life-threatening electrolyte abnormalities. In this ECG Cases blog Dr. Jesse MacLaren gives us an approach to potassium, calcium and magnesium abnormalities including risk factor assessment, ECG interpretation and management pearls...

By Jesse McLaren|2022-11-08T11:53:30-05:00November 8th, 2022|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine, Medical Specialty|Tags: ECG, ECG interpretation, electrolyte, Hypercalcemia, hyperkalemia, hypocalcemia, hypokalemia, hypomagnesemia, QT interval|1 Comment

ECG Cases 21: Hyperacute T-waves and Occlusion MI

In this month's ECG Cases blog, Dr. Jesse MacLaren guides us through 10 cases of patients whose ECGs show tall T-waves and gives us the tools to distinguish the hyperacute T-waves of occlusion MI from other causes of tall T-waves....

By Jesse McLaren|2021-05-04T13:35:44-04:00May 4th, 2021|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine, Medical Specialty|Tags: ECG, hyperacute T wave, hyperkalemia, occlusion MI, STEMI, tall T wave|0 Comments

ECG Cases 20 – Approach to Bradycardia and the BRADI Mnemonic

In this ECG Cases we review 10 patients who presented with bradycardia, introduce an approach to reversible causes using the BRADI mnemonic and guide you through how to use the ECG to guide management...

By Jesse McLaren|2021-04-06T14:42:58-04:00April 6th, 2021|Categories: Cardiology, ECG Cases, Emergency Medicine, Medical Specialty|Tags: BRADI mnemonic, bradycardia, BRASH syndrome, ECG, hyperkalemia, occlusion MI|0 Comments

ECG Cases 17 – ST ELEVATIONS mnemonic and Occlusion MI

In this ECG Cases blog we look at 10 patients who presented with ST elevation, and review the differential diagnosis of ST elevation using the ELEVATIONS mnemonic. Which had occlusion MI?

By Jesse McLaren|2021-01-12T09:42:36-05:00January 12th, 2021|Categories: Cardiology, ECG Cases, EM Cases, Emergency Medicine, Medical Specialty|Tags: Brugada, ECG, hyperkalemia, LBBB, LVH, occlusion MI, pericarditis, STEMI|0 Comments

Ep 150 Acute Kidney Injury – A Simple Emergency Approach to AKI

In this first part of our 2 part podcast series on AKI we answer questions such as: Is there any value in the BUN:Cr ratio in distinguishing prerenal from intrarenal disease? Why is nephritic syndrome one of the most important intrarenal causes to pick up in the ED? Is there any value in urine electrolytes for the ED workup of AKI? Is there a role for bicarb in patients with severe AKI? How can we choose wisely when it comes to imaging for patients with AKI? How can we utilize POCUS best in working up the patient with AKI? What are the indications for ordering a CK to look for rhabdomyolysis? At what CK level do patients typically develop AKI? How can the McMahon score help us manage rhabdomyolysis? What is the value of urine myoglobin in the workup of rhabdomyolysis? What are indications for dialysis in patients with rhabdomyolysis? What are safe discharge criteria for patients with rhabdomyolysis? and many more...

By Anton Helman|2022-10-30T08:42:59-04:00December 21st, 2020|Categories: EM Cases, Emergency Medicine, Episodes, Genitourinary, Medical Specialty|Tags: acute renal failure, AKI, ARF, hyperkalemia, rhabdomyolysis|3 Comments

ECG Cases 10 – Hyperkalemia: The Great Imitator

Which of the following 9 patients had hyperkalemia? Can you estimate how high their serum potassium was based on the ECG? Jesse MacLaren guides us through 9 ECGs underscoring the fact that while the ECG cannot rule out hyperkalemia, significant hyperkalemia often produces ECG changes in the heart rate (bradycardia, junctional rhythm), electrical conduction (PR prolongation or loss of P waves, QRS prolongation, pacemaker delays), and ST/T waves (Brugada phenocopy, peaked T waves that are narrow/pointy) that can be easily recognized. He suggests when you might pull the trigger on giving empiric calcium treatment based on the ECG finding in this month's ECG Cases...

By Jesse McLaren|2020-06-15T21:35:47-04:00June 15th, 2020|Categories: ECG Cases, Uncategorized|Tags: bradycardia, BRASH syndome, ECG, ECG interpretation, hyperkalemia|4 Comments