90 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 ... #ECG #Changes # ... Progression #Table
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
Known to Prolong QTc ... pseudoephedrine #QTc ... #Medications #Causes ... #pharmacology #table
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 ... Cardiology #Digitalis #ECG
Algorithm for the Management of Ventricular Tachycardia Electrical Storm
ES diagnosed (≥ 3 episodes of VT/ICD therapies
cardioversion Stable ... of reversible causes ... VT • Normal QTc ... • Long QTc (Torsades
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
Managing side effects of birth control

Adverse effects associated with hormonal contraceptives (e.g. headache, breakthrough bleeding, etc)
contraceptives (e.g ... breakthrough bleeding, etc ... continuous use (e.g ... progestin component, etc ... medications #obgyn #table
Extubation Checklist Mnemonic - MASCOTS
M - Mechanism (Underlying mechanism improving)
A - Airway (Patent, difficult intubation)
S -
Oxygenation (O2 stable ... - Tube feeds (Pause ... (Sedation off, passes ... Mnemonic #MASCOTS #criticalcare
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... 200ms from longer pause ... :1 , 3:2, 4:3, etc ... - , 3:1, 4:1, etc ... bradyarrhythmia #ECG
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Malignancy (e.g ... CNS pathology (e.g ... Pulmonary pathology (e.g ... Differential #Diagnosis #Table ... #Causes #Sodium