8 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... , abdominal pain ... Disorientation, vertigo Diagnostic ... #Urticaria #diagnosis ... rheumatology #comparison #table
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... negative predictive value ... , considered gold ... #Diagnosis #Workup ... #Table
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
- Differential Diagnosis ... Algorithm Pericardial ... • Stable Angina ... Kyphoscoliosis • Abdominal ... #Algorithm #Causes
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
- Differential Diagnosis ... of renal disease ... ultrasound; MRA; abdominal ... #Differential #Diagnosis ... #Workup #table
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... QuantiFERON-TB Gold ... intermediate risk of disease ... positive predictive value ... #Workup #TB #Latent
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
- A low value for ... hallmark for the disease ... If the value is ... low, tests to detect ... #Workup #Hematology
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Algorithm Polycythemia ... that a one-off value ... As with many disease ... Best to have an ... #Algorithm #workup
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Ischemic heart disease ... event, follow ACC algorithm ... determine if stress test ... undergoing AAA or upper abdominal ... stratification #diagnosis