23 results
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
inhibitors Other causes ... transplant - SLE High ... - NSAlDs - Beta-Blockers ... #Hyperkalemia #Algorithm ... #differential #causes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... 2 - Beta Blockers ... alpha & beta adrenergic ... #Pharmacology #Classification ... #Classes #pathophysiology
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
and 2, but not type ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... Differential Diagnosis Algorithm ... • ENaC blockers ... nephropathy • Beta ... #Causes
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... 2 - Beta Blockers ... alpha & beta adrenergic ... #Pharmacology #Classification ... #Classes #pathophysiology
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
Causes of Nephrolithiasis ... Differential Diagnosis Algorithm ... solubility: • Low ... Hypocitraturia • RTA Type ... #Causes
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Low Mean Corpuscular ... Chronic Infection) High ... #Anemia #MCV #Classification ... #Causes #Hematology
Causes of Non-Gap Metabolic Acidosis - Differential Diagnosis Algorithm
Normal Anion Gap (<14) (Loss of Bicarbonate) -
Causes of Non-Gap ... Differential Diagnosis Algorithm ... Cell Problem - Low ... Cell Problem - High ... #Causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... potassium • Beta ... Failure • SLE • Type ... differential #diagnosis #causes ... #potassium #high
Pheochromocytoma - Diagnosis and Management Summary
10 percent rule = 10% of pheochromocytomas are extra-adrenal, multiple, bilateral,
malignant, pediatric cases ... • Classic triad ... hypotension (may reflect low ... Starting beta blockers ... • Beta blockers