107 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Disorientation, vertigo Diagnostic ... test, TempTest ... doi: 10.1111/all ... Cold #Urticaria #diagnosis
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... K), H. pylori test ... thyroid function test ... (CVID, WAS), (neurologic ... not required in all
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... with vascular causes ... positional episodes caused ... Méniére's disease ... #differential #diagnosis
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... abnormal) in nearly all ... with a central cause ... #Diagnosis #PhysicalExam ... #Neurology #AVS
Romberg's Test for Proprioception
History: First described in the 19th century in patients with tabes dorsalis (later
Romberg's Test for ... Observe when patient closes ... • Cerebellar disease ... Unilateral vestibular disease ... #neurology #diagnosis
Causes of Tremors - Movement Disorders - Differential Diagnosis Algorithm
Action Tremor - Occurs During Voluntary Muscle
Causes of Tremors ... - Differential Diagnosis ... Tremor - Occurs at Rest ... MovementDisorders #Neurology ... #Algorithm #Causes
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
important, as early diagnosis ... and treatment can ... Inflammatory causes ... BEE #Syndromes #neurology ... #differential #diagnosis
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... If 100%, then all ... negative tests ... If 100%, then all ... #calculations #diagnosis
Leptospirosis
Pathogen: Leptospira (interrogans, kirschneri, noguchii)
Risk Factors:
 • Occupational exposure - Farmers, ranchers, trappers, veterinarians
 • Recreational
non-productive cough, nausea ... ARDS Diagnosis ... agglutination - test ... #microbiology #diagnosis ... #treatment #management
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
Causes of Polyuria ... - Differential Diagnosis ... GI Bleed) • NaCl ... #Polyuria #Nephrology ... #Algorithm #Causes