34 results
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Digoxin effect on Electrocardiogram ... is a cardiac glycoside ... conduction Uses: - Atrial ... fibrillation and atrial ... #EKG #Cardiology
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... through the AV node ... #PACs #cardiology ... #ecg #electrocardiogram ... #premature #atrial
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
Wandering atrial ... pacemaker - ECG ... back to the sinus node ... #pacemaker #cardiology ... #ecg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... (3) SVTs - atrial ... tachy not from SA node ... #electrocardiogram ... #cardiology #differential
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
other causes of cardio-pulmonary ... common finding) • Atrial ... also a result of atrial ... AcutePE #diagnosis #cardiology ... #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Brady Management ... P and QRS • Atrial ... • Block in AV node ... #electrocardiogram ... #ecg #cardiology
Myocarditis
Diagnosis 
• Endomyocardial biopsy (gold standard, rarely performed) 
• Clinical presentation 
• Cardiovascular MRI 
Clinical 
•
gallop • Abnormal ECG ... , echocardiogram ... shock, sudden cardiac ... death Management ... #Cardiology
Cardiac Amyloid - Diagnosis, Signs, Symptoms and Management

Clinical Presentation
- exertional dyspnea
- peripheral edema
- exertional syncope
- peripheral
Cardiac Amyloid ... , Symptoms and Management ... despite hx HTN) EKG ... precordial leads) - atrial ... Signs #Symptoms #Cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
Wandering Atrial ... back to the sinus node ... Sinus #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(e.g. ectopic atrial ... = QT / √ RR - Note ... Interpretation #ECG ... #Electrocardiogram ... #cardiology #diagnosis