50 results
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 ... Rest Test - Anticholinesterase ... Test - Quiver ... LikelihoodRatios #PhysicalExam ... #Testing
The following graph was prepared based on the latest information on Testing for the Diagnosis of
information on Testing ... There are NO tests ... chance of giving a false ... it is likely a false ... InfectiousDiseases #HIVAIDS #Testing
Shoulder Exam - Provocative Testing

Supraspinatus muscle injury:
 - Jobe’s Test
 - Hawkin’s Test
 - Drop Arm
- Provocative Testing ... - Hawkin’s Test ... - Drop Arm Test ... #Diagnosis #PhysicalExam ... #Shoulder #Testing
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... immunochemical test ... evaluation • False ... cauliflower, ETOH • False ... to unnecessary testing
The HINTS Exam - Differentiating Central vs Peripheral Vertigo

Head Impulse Test
Nystagmus
Test of Skew

Animation by Dr. Y.
Head Impulse Test ... Nystagmus Test ... #HINTS #Exam #PhysicalExam ... #Testing #Vertigo
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... Tuberculin skin testing ... (TST) False-negative ... recommended because false-negative ... #Tuberculosis #Testing
Pronator Drift Testing for Stroke
Subtle extensor weakness - Sign of Upper motor neuron lesion
In detecting CT/MRI
Pronator Drift Testing ... 9.2, LR- 0.09 Best ... test characteristics ... Pronator #Drift #Testing ... #Stroke #physicalexam
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... (High Rate of False ... naproxen and modern tests ... not result in false ... DrugScreening #UDS #Testing
Test Characteristics of Physical Exam, Imaging, and LRINEC 
Score for the Identification of Necrotizing Fasciitis (Sensitivity,
Test Characteristics ... Fasciitis #LRINEC #Testing ... #Accuracy #PhysicalExam
Cholecystitis Diagnostic Test Characteristics  

Sensitivity, Specificity and Likelihood Ratios of Labs, Physical Exam findings, and
Cholecystitis Diagnostic Test ... Cholecystitis #Testing ... LikelihoodRatio #Accuracy #PhysicalExam