49 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and duration of symptoms ... angioedema Other symptoms ... Disorientation, vertigo Diagnostic ... Cold #Urticaria #diagnosis
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
Insufficiency Addison's Disease ... Lymphoma Metastatic Disease ... Serum DHEAS Diagnosis ... clue • Blood tests ... endocrinology #diagnosis
Whipple Disease (Tropheryma whipplei) - Diagnosis and Management 

Caused by: Tropheryma whipplei

Symptoms and Signs:
1. Migratory poly/oligoarthralgia
Whipple Disease ... Management Caused ... Tropheryma whipplei Symptoms ... Oculomasticatory/oculo-facial-skeletal ... positive T. whipplei test
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... with vascular causes ... No auditory symptoms ... Méniére's disease ... Long symptom-free
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... PT, aPTT(liver disease ... K), H. pylori test ... (GI symptoms/endemic ... thyroid function test
Fatality / Mortality Calculations in an Outbreak
There are a number of different types of rates, risks,
rates, risks, ratios ... / # of people diagnosed ... with disease (for ... with symptoms / ... symptoms Dr.
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
ulceration • Ocular ... meningitis), MCC CNS symptoms ... Positive pathergy test ... is a skin prick test ... management #signs #symptoms
Alzheimer’s Disease: Pathogenesis and Clinical Findings
Risk factor for Late Onset Alzheimer's (99% of cases):
 - Increasing
Alzheimer’s Disease ... Apolipoprotein E4 allele ... chromosome 21) Signs / Symptoms ... pathophysiology #geriatrics #diagnosis ... #signs #symptoms
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... who test positive ... disorder presence alters ... but not on the causal ... #calculations #diagnosis
Adrenal Insufficiency - Diagnosis and Management Summary
Primary Adrenal Insufficiency:
Most Common Cause in the US: Autoimmune Adrenalitis
Other
or metastatic disease ... ketoconazole, etomidate) Symptoms ... , infiltrative diseases ... A STIM test can ... ACTH STIM TEST: