6 results
Headaches Overview - Primary vs Secondary Headaches

What’s the Core Difference?
 • Primary headache = headache is
- Primary vs Secondary ... ’s the Core Difference ... • Primary headache ... Primary #Secondary ... #Comparison #Neurology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... decades of life Causes ... skin contact with cold ... minutes after the cold ... #table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
e.g. pneumonia, COPD ... Cerebral salt wasting ... renal failure - Primary ... Differential #Diagnosis #Table ... #Causes #Sodium
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... by age 16 with secondary ... age 14 without secondary ... #Causes #OBGyn
Hypertrophic Pachymeningitis - Differential Diagnosis Framework

Pachymeningitis is a rare condition that causes areas of a layer
condition that causes ... surrounds the spinal cord ... vision changes, headaches ... hypotension - Primary ... hypotension - Secondary
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
Treat underlying cause ... replacement Cord ... radiology for possible stenting ... : CNS changes, headache ... : CNS changes, headache