82 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Toxic Damage (e.g ... Displacement (e.g ... Quinidine • HIT ... Non-lmmune: • HELLP Syndrome ... Foreign Surface (e.g
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Drugs (antibiotics e.g ... Sarcoidosis or Lofgren's syndrome ... Viral: HSV, EBV, HIV ... #Differential #
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Short Stature - Differential ... Diagnosis Algorithm ... Panhypopituitarism Treatment ... #Diagnosis #Algorithm ... endocrinology #causes
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... - Differential ... Diagnosis Algorithm ... • Fanconi's syndrome ... Protein deposition (eg
Causes of Developmental Delay - Differential Diagnosis Algorithm
Isolated Domain Delay - Reduced Respiratory Drive:
 • Cognitive
Causes of Developmental ... Delay - Differential ... Diagnosis Algorithm ... Teratogenic Disorder (e.g ... • Mechanical (e.g
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Causes of Excessive ... Sleep Deprivation (Eg ... Neurologic Disorders (Eg ... • Medications (Eg ... • Drug Abuse (Eg
Causes of Congenital Anomalies - Differential Diagnosis Algorithm
Malformation
 • Embryonic development failure or inadequacy (often multifactorial)
Deformation
Causes of Congenital ... Diagnosis Algorithm ... normal tissue (e.g ... of Anomalies (Syndromic ... • Association (e.g
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
polyneuropathy (e.g ... Guillain-Barré syndrome ... Hyperthyroidism, Serotonin syndrome ... #differential # ... diagnosis #table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cirrhosis Syndrome ... - Malignancy (e.g ... CNS pathology (e.g ... #Diagnosis #Table ... #Causes #Sodium
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Diagnosis Algorithm ... Gonadal Dysgenesis (e.g ... Gonadal Dysgenesis (e.g ... • Functional (e.g