163 results
Cholecystitis Diagnostic Test Characteristics  

Sensitivity, Specificity and Likelihood Ratios of Labs, Physical Exam findings, and
Sensitivity, Specificity ... and Likelihood ... #Sensitivity #Specificity ... #LikelihoodRatio
This requires defining some general cutoff values for likelihood ratios.  These are admittedly arbitrary, but
cutoff values for likelihood ... between sensitivity/specificity ... and likelihood ... #Sensitivity #Specificity ... #LikelihoodRatios
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
disease present Specificity ... negatives Positive Likelihood ... ) Negative Likelihood ... Sensitivity) / Specificity ... Sensitivity vs Specificity
Draw a connecting your pre-test probability and your likelihood ratio. This provides you with your post-test
probability and your likelihood ... FaganNomogram #LikelihoodRatio
Acute Coronary Syndrome - Diagnostic Likelihood Ratios for Symptoms and Physical Examination. 

Source:  Does This
Syndrome - Diagnostic Likelihood ... Symptoms #Signs #LikelihoodRatios
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
Physical Exam Likelihood ... #PhysicalExam #LikelihoodRatios
Malaria in Returning Travelers

Signs and Symptoms for Malaria with Likelihood Ratios 

Does this patient have malaria?
for Malaria with Likelihood ... #Malaria #LRs #LikelihoodRatios
Acute Coronary Syndrome - Diagnostic Likelihood Ratios for Symptoms and Physical Examination. Source: Fanaroff AC, Rymer
Syndrome - Diagnostic Likelihood ... AcuteCoronarySyndrome #LikelihoodRatios
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
and Testing - Likelihood ... #Gravis #LRs #LikelihoodRatios
Test Characteristics of Physical Exam, Imaging, and LRINEC 
Score for the Identification of Necrotizing Fasciitis (Sensitivity,
(Sensitivity, Specificity ... #Sensitivity #Specifiity