10 results
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
disease (MCTD), Drug-induced ... #Antinuclear #Antibodies ... #ANA #patterns ... #rheumatology #diagnosis ... #differential
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... disease (MCTD), Drug-induced ... #rheumatology #diagnosis ... #differential
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... antiphospholipid antibodies ... associated with systemic ... Causes #diagnosis #differential ... #hematology #coagulation
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... antiphospholipid antibodies ... associated with systemic ... amyloidosis #Abnormal ... #hematology #coagulation
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... SLE-Related Auto-Antibodies ... : - ANA 95-100% ... Diagnosis and Lupus ... #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... permanent alopecia Differential ... extremities Drug ... /or medications ... #Diagnosis #Rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Drug Induced Lupus ... Workup: - ANA ... months to years) Systemic ... Workup: - ANA ... comparison #table #rheumatology
Drug Induced Systemic Lupus Erythematosus
> 100 drugs have been associated with drug-induced SLE
High risk (>5%):
 •
Drug Induced Systemic ... for 1 year of treatment ... #medications #drugs ... pharmacology #risk #differential ... #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... lupus erythematosus ... LFT • ESR • ANA ... ) pattern: antibodies ... #diagnosis #rheumatology
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
mucositis, or prolonged ... lupus erythematosus ... Drug-associated: ... #Differential # ... Diagnosis #High #Potassium