9 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
 •
Causes of Chronic ... - Differential Diagnosis ... • Stable Angina ... Kyphoscoliosis • Abdominal ... #Algorithm #Causes
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... practices that could ... #Causes #Workup ... #hematology
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
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preop creatinine ... event, follow ACC algorithm ... determine if stress test ... undergoing AAA or upper abdominal ... stratification #diagnosis
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
activity - A low value ... hallmark for the disease ... If the value is ... low, tests to detect ... #Workup #Hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
deficiency Work ... Fecal occult blood test ... Skin biopsy • Abdominal ... #Algorithm #Causes ... #dermatology #physicalexam
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Algorithm Polycythemia ... an underlying cause ... that a one-off value ... Best to have an ... #Algorithm #workup