21 results
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Sensitivity Specificity ... False-Positive ... False-Negative Contingency ... Table / confusion ... #Contingency #Table
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Sensitivity is the ... Sensitivity indicates ... that any given case ... it has a narrow focus ... #Calculation #Table
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1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
and pneumocystis False ... Glucan-containing gauzes ... other fungi • False ... Characteristics #Sensitivity
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Insipidus (Incr ADH sensitivity ... Differential #Diagnosis #Table ... #Causes
"Imagine you're running airport security, screening passengers (tests) to catch dangerous items (diseases). Now meet your
two star agents: Sensitivity ... Sensitivity is your ... test has high sensitivity ... miss some real cases ... short: High sensitivity
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Sensitivity (rule ... PPV Higher sensitivity ... null when it’s false ... when it is indeed false ... but not on the causal
Additional Modalities for Workup of GI Bleed (Other than EGD + Colonoscopy)

Pill endoscopy
 • Able to
endoscopy • Able ... endoscopy limits, high sensitivity ... Enterography • Able ... Noninvasive • False ... gastroenterology #table
Borrelia recurrentis on Peripheral Blood Smear
23M Somali refugee recently arrived w/severe abd pain, confusion and fever
BP stable, HR 115 ... the body louse, causes ... The table below ... demonstrating spirochetes; sensitivity ... Given low sensitivity
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
non-invasive - High sensitivity ... obstruction - Able ... identify non-calculus causes ... for non-calculus causes
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
features: Frequent false-negative ... in up to 30% of cases ... Marantic #diagnosis #table