3152 results
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... Algorithm Forehead Sparing ... = Central cause ... Diagnosis #Algorithm #Causes ... #neurology #sparing
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
distribution, sparing ... thick honey-yellow crusts ... Diagnosis #Algorithm #causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... Diarrhea, Third spacing ... Diagnosis #Algorithm #Causes
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... Metabolic Acidosis Causes ... and chronic) Causes ... Potassium-sparing ... differential #diagnosis #causes
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
otalgia Most Common Causes ... externa Mechanical Causes ... zoster Neoplastic Causes ... Inflammatory Causes ... external ear, sparing
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
sodium, which causes ... inhibiting drug classes ... AND a potassium-sparing
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
severe burns, third-spacing ... findings based on cause
Seesaw Nystagmus 

Sawtooth or seesaw nystagmus is an unusual but characteristic type of nystagmus. Typically there
nucleus of Cajal, sparing ... We have varied causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Digoxin • K sparing ... differential #diagnosis #causes
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Kidney stones caused ... Epithelial Channels (K+ Sparing ... Antagonists, K+ Sparing