536 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
true positives / disease ... FP + TN) = true negatives ... / disease absent ... / all negatives ... #calculations #diagnosis
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
• Autoimmune disease ... HACEK • Culture-negative ... epidermidis • Gram-negative ... Enterococcus • Gram-negative ... #Differential #Diagnosis
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
individual studies Clinical ... , describe clinical ... 100%, then all negative ... proportion of negative ... #calculations #diagnosis
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... specificity - Falsely negative ... ) - May be negative ... HLA-DQ8 - High negative ... Laboratory #Tests #Diagnosis
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
- Differential Diagnosis ... Cold Agglutinin Disease ... AIHA (7-8%) DAT-negative ... #Differential #Diagnosis
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... for the neuro-ophthalmologic ... Microvascular disease ... #Differential #Diagnosis ... #Causes #Ophthalmology
Jaundice and Kayser-Fleischer Rings in Wilson's Disease

#Jaundice #Kayser #Fleischer #Rings #Wilsons #Disease #clinical #video #ocular #physicalexam
Rings in Wilson's Disease ... Rings #Wilsons #Disease ... #clinical #video ... #physicalexam #ophthalmology
Asterixis is a type of negative myoclonus characterized by irregular lapses of posture of various body
Asterixis is a type of negative ... associated with liver disease ... #PhysicalExam #clinical ... #diagnosis #video
Patterns of Diseases on MRI FLAIR - Differential Diagnosis
ADEM, Adreno-leukodystrophy, CADASIL, CNS, Lymphoma, High-Grade Glioma, HIV
Patterns of Diseases ... - Differential Diagnosis ... Vessel Ischemic Disease ... #Differential #Diagnosis ... neuroradiology #clinical
Multiple Myeloma and Monoclonal Gammopathies
C - HyperCalcemia- calcium > 11 mg/dL / >1 mg/dL the ULN
R
ULN R - Renal disease ... Causes of false- negative ... chain deposition disease ... and autoimmune diseases ... Gammopathies #MGUS #diagnosis