82 results
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... in conduction causes ... prolonged PR and QT intervals ... #ECG #Changes # ... Progression #Table
Internal Jugular Vein Rouleaux Flow on POCUS

Amazing video of a dilated IJV showing Rouleaux flow. Whenever
Internal Jugular ... Rouleaux Flow on POCUS ... significantly, it causes ... for underlying cause ... Rouleaux #Flow #Internal
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Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... nodal conduction Uses ... Digoxin effect on ECG ... waves - Short QT interval ... Cardiology #Digitalis #ECG
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
Originates from single focus ... prolong the QT interval ... Diagnosis #Cardiology #ECG ... #EKG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... 1º - long PR intervals ... 200ms from longer pause ... successively longer PR intervals ... bradyarrhythmia #ECG
Chest pain, good story, but nonspecific ECG? Do a bedside echo: regional WMAs support your case
but nonspecific ECG ... WMAs support your case ... Clinical #Diagnosis #POCUS
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Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Deep coma (any cause ... polyneuropathy (e.g ... Hyperreflexia #Testing #Causes ... differential #diagnosis #table
Vasopressors Table 
Rough properties by Target Receptor, Heart Rate/Inotropy, Systemic Vascular Resistance, Cardiac Output, Blood Pressure,
Vasopressors Table ... Resistance, Main Uses ... Dobutamine 2-20 mcg ... Epinephrine 0-20 mcg ... Vasopressors #Properties #Table
Acute Coronary Syndrome (ACS) Definitions - Stable Angina, Unstable Angina, NSTEMI, STEMI
1 STABLE ANGINA - Angina
Definitions - Stable ... NSTEMI, STEMI 1 STABLE ... thrombus formation causes ... is reflected by ECG ... Text: The Only EKG
Junctional Rhythms - Junctional rhythm describes an abnormal heart rhythm resulting from impulses coming from a
coming from a locus ... Cardiology #MedStudent #EKG ... Junctional #Rhythms #Table