30 results
ECG Changes with Potassium Imbalance
 - Normokalemia
 - Hypokalemia
 - Hyperkalemia

#Hypokalemia #Hyperkalemia #ECG #potassium #cardiology #ekg
ECG Changes with ... Potassium Imbalance ... Hyperkalemia #ECG ... #potassium #cardiology ... #diagnosis
EKG showing prominent U waves due to hypokalemia. Serum potassium 2.0. 

#EKG #emergencymedicine #criticalcare #cardiology #internalmedicine
U waves due to hypokalemia ... Serum potassium ... #criticalcare #cardiology ... internalmedicine #EM #diagnosis ... Electrocardiogram #ECG
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
of Drug-Induced Hyperkalemia ... inhibition (NSAIDs, Beta-Blockers ... • Increased EC ... #differential #diagnosis ... #pharmacology #potassium
Beta Blocker Side Effects / Toxicity
Cardiac Side Effects:
 • Sinus bradycardia, AV block, Heart failure exacerbation,
Beta Blocker Side ... exacerbation, Beta ... syndrome (e.g. ... Facilitation of hyperkalemia ... #pharmacology #diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... • Recent IV potassium ... • Beta blockers ... cell membrane - Beta ... #causes #potassium
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... duration CLASS 2 - Beta ... repolarization CLASS 3 - Potassium ... alpha & beta adrenergic ... pathophysiology #cardiology
Hyperkalemia on EKG
"Mild" Hyperkalemia
 • Peaked, narrow-based T Waves
 • Double counting of HR by EKG
Hyperkalemia on ... EKG "Mild" Hyperkalemia ... of conduction block ... #EKG #ECG #electrocardiogram ... #cardiology #diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... • Recent IV potassium ... • Beta blockers ... cell membrane - Beta ... #causes #potassium
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management ... Dialysis Serum potassium ... and ECG changes ... #potassium #high ... #diagnosis #management
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
2nd Degree AV Block ... till a dropped beat ... Second #Degree #AV #Block ... #AVBlock #diagnosis ... #cardiology #EKG