57 results
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
Barrel Chest - LR ... Lip Breathing - LR ... breath sounds - LR ... cardiac impulse - LR ... #PhysicalExam #LikelihoodRatios
POUND Mnemonic for Diagnosis of Migraine Headache
P Is the headache Pulsatile in quality?
O Is the duration
≥ 4 features LR ... 3 features LR ... 3.5 ≤2 features LR ... Pound #Mnemonic #LR ... #LikelihoodRatio
Acute Coronary Syndrome - Diagnostic Likelihood Ratios for Symptoms and Physical Examination. 

Source:  Does This
Symptoms #Signs #LikelihoodRatios ... #LR #Typical #Atypical
This requires defining some general cutoff values for likelihood ratios.  These are admittedly arbitrary, but
Weak impact: +LR ... between 1-3 or a -LR ... Strong impact: +LR ... >10 or a -LR <1 ... #Specificity #LikelihoodRatios
Acute Coronary Syndrome - Diagnostic Likelihood Ratios for Symptoms and Physical Examination. Source: Fanaroff AC, Rymer
AcuteCoronarySyndrome #LikelihoodRatios ... #LR #Typical #Atypical
Cushing Syndrome - Likelihood Ratios of Physical Exam Findings
Moon facies LR +1.6
Central obesity LR +3.0
Generalized obesity
Central obesity LR ... Thin skinfold LR ... 115.6 Plethora LR ... +NS Ecchymoses LR ... or blue striae LR
Physical Exam findings in Lower Extremity DVT - Likelihood Ratios
 - Asymmetric calf swelling, ≥2 cm
cm difference - LR ... venous dilation - LR ... of entire leg - LR ... skin warmth - LR ... ankle swelling - LR
Likelihood Ratios - Probability
Remember 2/5/10 and 15/30/45:
 • LR of 2 increases the probability by 15%
and 15/30/45: • LR ... probability by 15% • LR ... probability by 30% • LR ... 5, and 1/10 • LR ... probability by 15% • LR
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
disorientation (LR ... • Cachexia (LR ... C or < 35.1°C (LR ... min or greater (LR ... oximetry < 95% (LR
Physical Exam Findings Predicting Thyroid Carcinoma - Likelihood Ratios
If goiter is present:
 • Cervical adenopathy -
Cervical adenopathy - LR ... surrounding tissues - LR ... cord paralysis - LR ... Cervical adenopathy - LR ... cord paralysis - LR