12 results
Emergency physician interpretation of point-of-care ultrasound for identifying and grading of hydronephrosis in renal colic compared
pubmed/29663580 #EBM ... Hydronephrosis #Comparison ... #Accuracy #Sensitivity ... #Specificity #Testing
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
, 94% specificity ... , 87% specificity ... 100% detection rate ... Screening #Tests #comparison ... gastroenterology #CRC #Testing
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
100%, specificity ... Demyelinating disease ... effect/Edema • EBV ... of serum CrAg testing ... comparable to CSF testing
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
& Specificity: ... colonization vs invasive disease ... - Sensitivity ... Frozen ice-pops (in setting ... Galactomannan #diagnosis #comparison
ACA Colorectal Cancer Screening Guidelines

When to Screen?
When to Stop?
Family History

Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based
, 94% specificity ... , 87% specificity ... 100% detection rate ... Indications #Tests #comparison ... gastroenterology #CRC #Testing
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Sensitivity (rule ... Specificity (rule ... FN) Higher specificity ... PPV Higher sensitivity ... alters recall Late-look
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
Differential Diagnosis Algorithm ... HBV, HCV, HEV, EBV ... Assists in liver specificity ... synthesis rises later ... differential #diagnosis #algorithm
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Studies in Rheumatic Diseases ... sedimentation rate ... - CCP antibody testing ... has higher specificity ... test but lower sensitivity
Antibiotic Susceptibility Testing Methods
1) Kirby Bauer Disk Diffusion: disks impregnanted w/ Abx → circular gradient →
Susceptibility Testing ... dilutions in 96-well plate ... concentrations + algorithms ... MIC Infectious Diseases ... #Antibiotic #Sensitivity
Celiac Disease - Diagnosis Algorithm
IgA TTG has high sensitivity and specificity of ~ 98% and is
Celiac Disease - ... Diagnosis Algorithm ... IgA TTG has high sensitivity ... and specificity ... pts need further testing