2478 results
Extraocular Muscle Actions & Clinical Testing
What about clinical testing of extraocular muscle function & associated nerve
Muscle Actions & Clinical ... Testing What about clinical ... In this position ... Muscle #Actions #diagnosis ... #testing #ophthalmology
Periorbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Dacryoadenitis: infection of the lacrimal glands
b. Conjunctivitis: inflammation of the
Pathogenesis and Clinical ... movements and globe position ... pathophysiology #ophthalmology ... #diagnosis #signs
Terrien's Marginal Degeneration on Slit Lamp Ocular Examination

70-year-old patient who consulted for subconjunctival hemorrhage x 1
History of positive ... It is diagnosed ... #PhysicalExam #clinical ... #video #ophthalmology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
association • M > F Clinical ... Behcet syndrome (Clinical ... Skin lesions • Positive ... ) Differential Diagnosis ... inhibitors • Uveitis- Ophthalmology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
Diagnosis = clinical ... w/differential diagnosis ... be confident of diagnosis ... Biopsies remain positive ... required +/- prompt ophthalmology
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
TP + FN) = true positives ... disease absent Positive ... TP + FP) = true positives ... / all positives ... #calculations #diagnosis
Positive Seidel test on fluorescein stain exam

Globe rupture can be identified by a positive Seidel test
Positive Seidel ... identified by a positive ... in making the diagnosis ... Rupture #Seidel #Positive ... #fluorescein #Ophthalmology
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... yielding false-positive ... can cause false positives ... Amphetamine false positives ... #differential #diagnosis
Positive FAST in the RUQ view demonstrating echogenic clot in Morison’s pouch with adjacent anechoic free
Positive FAST in ... free fluid (*) #Clinical ... #Diagnosis #EM ... HepatorenalRecess #Positive
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... Rate of False Positives ... result in false positives ... enough to prevent positive ... Testing #Laboratory #diagnosis