31 results
Sinus pause/arrest vs Sinoatrial Block

#cardiology #diagnosis #ekg #ecg #electrocardiogram #sinuspause #sinoatrialblock
Sinus pause/arrest ... vs Sinoatrial Block ... #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
EKG showing prominent U waves due to hypokalemia. Serum potassium 2.0. 

#EKG #emergencymedicine #criticalcare #cardiology #internalmedicine
EKG showing prominent ... U waves due to hypokalemia ... #criticalcare #cardiology ... internalmedicine #EM ... #diagnosis #Electrocardiogram
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Hypercalcemia - ... EKG Findings Causes ... #EKG #ECG #Electrocardiogram ... #Differential #Causes ... #Diagnosis #Cardiology
Hyperkalemia on EKG
"Mild" Hyperkalemia
 • Peaked, narrow-based T Waves
 • Double counting of HR by EKG
EKG "Mild" Hyperkalemia ... QRS widening • Sinus ... of conduction block ... #EKG #ECG #electrocardiogram ... #cardiology #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... Wandering Atrial Pacemaker ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
- ECG Diagnosis ... shifts back to the sinus ... • Variant of sinus ... #cardiology #diagnosis ... #ekg #ecg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
200ms from longer pause ... - ventricular pacemaker ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #differential
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
- Differential Diagnosis ... Abscess • Sick sinus ... surgery • Heart block ... Failure of permanent pacemaker ... #causes #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... Wandering Atrial Pacemaker ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
• In sinus rhythm ... by a junctional pacemaker ... #Complete #cardiology ... #ekg #ecg #diagnosis ... #electrocardiogram