103 results
Cholecystitis Diagnostic Test Characteristics  

Sensitivity, Specificity and Likelihood Ratios of Labs, Physical Exam findings, and
Sensitivity, Specificity ... and Likelihood ... Cholecystitis #Testing ... #Sensitivity #Specificity
Cushing Syndrome - Likelihood Ratios of Physical Exam Findings
Moon facies LR +1.6
Central obesity LR +3.0
Generalized obesity
Cushing Syndrome - Likelihood ... Central obesity LR ... Thin skinfold LR ... Cushings #Syndrome #Likelihood ... #Ratios #LRs #PhysicalExam
Dyspnea - Likelihood Ratios for Physical Exam Maneuvers

- bethgarbitelli @bethgarbitelli

#Dyspnea #Likelihood #Ratios #LRs #PhysicalExam #Maneuvers #diagnosis
Dyspnea - Likelihood ... bethgarbitelli #Dyspnea #Likelihood ... #Ratios #LRs #PhysicalExam
Test Characteristics of Physical Exam, Imaging, and LRINEC 
Score for the Identification of Necrotizing Fasciitis (Sensitivity,
(Sensitivity, Specificity ... Fasciitis #LRINEC #Testing ... #Sensitivity #Specifiity
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
, Symptoms and Testing ... - Likelihood Ratios ... Myasthenia #Gravis #LRs ... #PhysicalExam #Testing
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
Likelihood Ratios - Probability
Remember 2/5/10 and 15/30/45:
 • LR of 2 increases the probability by 15%
Likelihood Ratios ... and 15/30/45: • LR ... 5, and 1/10 • LR ... BrighamChiefs #Likelihood ... #Probability #LRs
Physical Exam Findings Predicting Thyroid Carcinoma - Likelihood Ratios
If goiter is present:
 • Cervical adenopathy -
Thyroid Carcinoma - Likelihood ... cord paralysis - LR ... cord paralysis - LR ... #PhysicalExam #Likelihood ... #LRs #diagnosis
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
Physical Exam Likelihood ... Barrel Chest - LR ... Lip Breathing - LR ... breath sounds - LR ... LikelihoodRatios #LRs
Urinalysis Testing - UTI Sensitivity and Specificity
 - Leukocyte esterase 
 - Nitrite 
 - WBCs
Urinalysis Testing ... Sensitivity and Specificity ... #Urinalysis #Testing ... #Sensitivity #Specificity