15 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Class I (Ia, Ib ... Widens QRS complex Class ... prolongs PR interval Class ... Prolongs QT interval Class ... #Classes #cardiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
: CLASS 1 - Sodium ... duration: - CLASS ... duration - CLASS ... 1C: Strong Blockade ... #Classes #pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: CLASS 1 - Sodium ... duration - CLASS ... duration - CLASS ... 1C: Strong Blockade ... #Classes #pathophysiology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Differential Diagnosis Algorithm ... Low Mean Corpuscular ... #Anemia #MCV #Classification ... #Causes #Hematology
Etiologies of Hypoaldosteronism

Hyporeninemic Hypoaldosteronism (Low Renin, Low Aldosterone)
 - Diabetic Nephropathy 
 - NSAIDs
Non-Hyporeninemic Hypoaldosteronism (Normal
Hypoaldosteronism (Low ... Inhibitors - Chronic ... Eric Strong https ... Aldosterone #Comparison #Table ... #Causes
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Eric Strong https ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Chronic diarrhea ... Eric Strong https ... #Magnesium #Table ... #Classification ... #Causes #Workup
Causes of Non-Gap Metabolic Acidosis - Differential Diagnosis Algorithm
Normal Anion Gap (<14) (Loss of Bicarbonate) -
Causes of Non-Gap ... Differential Diagnosis Algorithm ... Type II • Carbonic ... Cell Problem - Low ... #Causes
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... Chest CT: • Ground-glass ... 300 mg/dL) • Low ... DDX - Other causes ... Malignancies • Chronic
Pulmonary Nodule
Evaluation is guided by nodule size & assessment of probability of malignancy. In addition is
are called lung masses ... a repeat chest CT ... comorbidities, such as chronic ... growth with chest CT ... appearance is typically slow