14 results
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Infective Endocarditis ... microbiological techniques Work-up ... See charts - ... #Infective #Endocarditis ... #diagnosis #differential
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Thrombocytopenia - Differential ... infiltration: malignancy, infection ... - Autoimmune: SLE ... valve replacement, endocarditis ... Diagnosis #Framework #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... ) - Viral infections ... Associated - SLE ... • Bacterial endocarditis ... #rheumatology #
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... • Bacterial endocarditis ... aureus • Gram-negative ... arthritis • SLE ... Symmetrical: • RA • SLE
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Bacterial or viral infection ... Subacute bacterial endocarditis ... fever - Bacterial endocarditis ... #joint #pain #differential ... #diagnosis #rheumatology
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Hemoptysis - Differential ... Parenchyma: • Infection ... Kaposi's sarcoma • Rheumatologic ... Goodpasture's, SLE ... regurgitation, Tricuspid endocarditis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... devices (CIED) Non-Infectious ... • Autoimmune (SLE ... • Coagulase-negative ... Marantic (NTBE) Differential
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... procedures - Infection ... test, ANA (e.g., SLE ... #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia - Differential ... genotypes): SS, SC, SE ... inclusions - If infection ... Diagnosis #Algorithm #workup ... #hematology #testing
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
the face (many differential ... Unexplained fever, when infection ... including in children (pediatric ... SLE) 10) When ... erythematosus #rheumatology