1431 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... fever, fatigue, Nausea ... vertigo Diagnostic tests ... - Ice cube test ... , TempTest test
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... Rare causes: ... , IgG4-related disease ... Differential #Diagnosis #Causes
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Renal parenchymal disease ... Renal ultrasound, Tests ... of renal disease ... • Renovascular disease ... sodium loading test
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
proportion of truly diseased ... identified as diseased ... correctly diagnose a case ... that any given case ... identify a non-diseased
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
Insufficiency Addison's Disease ... aldosterone Causes ... : Most Common Causes ... Tuberculosis: can cause ... clue • Blood tests
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 ... proprioception #physicalexam
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... PT, aPTT(liver disease ... K), H. pylori test ... thyroid function test ... bypass), LFT (liver disease
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
speaking - Sleep Test ... - Ice Test - ... Rest Test - Anticholinesterase ... Test - Quiver ... LikelihoodRatios #PhysicalExam
HINTS Exam - Abnormal Head Impulse Test = Peripheral Cause

This video demonstrates:
1) Normal Head Impulse Test
Abnormal Head Impulse Test ... = Peripheral Cause ... Normal Head Impulse Test ... for a PERIPHERAL cause ... #HINTS #PhysicalExam
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
for Celiac Disease ... patients with celiac disease ... Sensitivity for celiac disease ... value for celiac disease ... expensive #Celiac #Disease