7 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
will correctly diagnose ... it has a narrow focus ... #Epidemiology #Sensitivity ... #Calculation #Table ... #PPV #NPV #Formulas
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and clinical associations ... , abdominal pain ... Cold #Urticaria #diagnosis ... rheumatology #comparison #table
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
USMLE Epidemiology ... , describe clinical ... how related two values ... Biostatistics #formulas ... #calculations #diagnosis
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
obstruction - Able ... of flank or abdominal ... retroperitoneal disease ... MRI - Limited value ... with surgical access
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
left-sided heart valves ... in up to 30% of cases ... common, Aortic root abscess ... - Infectious Diseases ... #table
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
to bolus these values ... presentations and disease ... / hypoxemia -> focus ... assessment - assess ... tests before beginning
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Assess functional ... determine if stress test ... Change in clinical ... undergoing AAA or upper abdominal ... stratification #diagnosis