469 results
Causes of Myocarditis 
1. Infectious Myocarditis
 • Bacterial - Staphylococcus, Streptococcus, Pneumococcus, Meningococcus, Gonococcus, Salmonella, Corynebacterium
Mycoplasma pneumoniae, Brucella ... measles virus, rubella ... Autoantigens - Infection-negative ... lymphocytic, infection-negative
Common Childhood Exanthems - Differential Diagnosis
1) Rubeola (Measles) - Measles morbillivirus (MeV)
2) Scarlet Fever - Streptococcus
Diagnosis 1) Rubeola ... Streptococcus pyogenes 3) Rubella ... German measles) - Rubella
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
for anti-C3d and negative ... Mycoplasma, EBV, HIV, rubella
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Hepatitis B virus • Rubella ... aureus • Gram-negative
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... as a cause of a negative ... Fastidious: Nocardia, Brucella ... Fastidious: Bartonella, Brucella ... AnnKumfer #Culture #Negative
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
FP + TN) = true negatives ... all positives Negative ... FN + TN) = true negatives ... / all negatives ... Specificity) Negative
Rubella (German Measles)
Rubella, also called German measles, often presents with a mild febrile illness with a
Rubella (German ... Measles) Rubella ... lymphadenopathy #Rubella
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Endocarditis (IE) Has Negative ... cause of culture negative ... , Bartonella, Brucella ... #Endocarditis #Negative
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
ANAs; thus, a negative ... tests: HIV test, a rubella
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Systemic infection Native ... Staphylococcus lugdunensis Native ... HACEK • Culture-negative ... epidermidis • Gram-negative ... Enterococcus • Gram-negative