22 results
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... Digoxin effect on ECG ... waves - Short QT ... Electrocardiogram #EKG ... #ECG
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
Originates from single focus ... that prolong the QT ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... prolonged PR and QT ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table
Pulmonary Embolism on ECG 

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
on ECG Mid ... Triage EKG (no prior ... See thread for POCUS ... #Embolism #ECG ... #EKG #Electrocardiogram
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
WOBBLER for ECG ... found in long QT ... is also a short QT ... Mnemonic #Syncope #EKG ... #ECG #Diagnosis
Vasopressors Table 
Rough properties by Target Receptor, Heart Rate/Inotropy, Systemic Vascular Resistance, Cardiac Output, Blood Pressure,
Vasopressors Table ... Blood Pressure, Pulmonary ... Resistance, Main Uses ... Vasopressors #Properties #Table ... Pharmacology #Effect #Management
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Control rate (e.g ... Treat underlying cause ... Control rate (e.g ... Tachycardia #Treatment #management ... #cardiology #algorithm
Recurrent Polymorphic VT/Torsades de Pointes - Management Algorithm
Drugs that prolong QT interval:
 • Class 1a (quinidine,
Torsades de Pointes - Management ... Drugs that prolong QT ... Congenital long QT ... 1b (lidocaine)- case ... TorsadesdePointes #TDP #Management
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
and a prolonged QT ... QRS complex Pulmonary ... waves - Short QT ... waves • Short QT ... #ecg #ekg #electrocardiogram
Cardiac Stress Testing
Exercise:
 • Everyone who can exercise should!
 • They must be able to raise
• They must be able ... production to cause ... arrythmias Diagnostics: EKG ... Stress #Testing #cardiology ... #management #diagnosis