1381 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 ... the condition Specificity ... Specificity of a
The test characteristics of the heterophile antibody (AKA the monospot test) are not perfect and can
can lead to both false ... positive and false ... #Diagnosis #Mononucleosis ... #Sensitivity #Specificity
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
and pneumocystis False ... Most specific for diagnosing ... other fungi • False ... #Sensitivity #Specificity ... InfectiousDiseases #Diagnosis
Test Characteristics of Physical Exam, Imaging, and LRINEC 
Score for the Identification of Necrotizing Fasciitis (Sensitivity,
(Sensitivity, Specificity ... #Sensitivity #Specifiity ... #Diagnosis
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
that Can Cause False ... Amphetamine false ... Cannabinoid false ... Benzodiazepine false ... #differential #diagnosis
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... in HbA1c == False ... Transfusions == False ... Transfusions #False ... Increase #Decrease #Diagnosis
Ascites: Physical Exam Diagnostic Accuracy

Sensitivity and Specificity: Shifting Dullness, Bulging Flanks. Fluid Wave 

Source: Joseph D.
Physical Exam Diagnostic ... Sensitivity and Specificity ... Science of Bedside Diagnosis ... #Diagnosis #PhysicalExam ... #Sensitivity #Specificity
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
Sensitivity & Specificity ... 96% - Higher specificity ... breakthrough IFI in HM • False ... recipients, CGD pts • False ... Galactomannan #diagnosis
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
disease present Specificity ... Sensitivity) / Specificity ... Sensitivity vs Specificity ... = Rule OUT - Specificity ... #calculations #diagnosis
Diagnostic Algorithms for Microcytic, Normocytic and Macrocytic Anemia

#Microcytic #Normocytic #Macrocytic #Anemia #Algorithm #Comparison #Diagnosis
Diagnostic Algorithms ... Macrocytic #Anemia #Algorithm ... #Comparison #Diagnosis