15 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Diagnosis Algorithm ... Red Flags: • Fever ... deficiency Work ... #Causes #dermatology
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... triad (<10%): fever ... , rash, eosinophilia ... sterile pyuria, WBC casts ... Nephritis #AIN #Algorithm
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
NPSLE rare, Malar rash ... • Immunologic Workup ... 90% - Low complement ... Manifestations: Malar rash ... • Immunologic Workup
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... mucositis - Rash ... Vasculitis: • Fevers ... against MPO • Complement ... #rheumatology #classification
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Manifestations: Malar rash ... • Immunologic Workup ... Positive in 60-80% of cases ... 80% - Low complement
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Allergen-specific lgE causes ... Anaphylaxis, Hay fever ... antigens, leading to complement ... they activate complement ... allergy #table #classification
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... anti-Smith Ab, low complements ... Skin Disease Classification ... to: Arthritis, Fever ... RNP antibodies, Complement
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Fevers ... , mucositis • Rash ... tract, and often causes ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic
Algorithm for the Evaluation of Kawasaki and Incomplete Kawasaki Disease:
Diagnosis
* Fever >5d
* Criteria (4/5)
  -
Algorithm for the ... Diagnosis * Fever ... , >1.5cm) - Rash ... Disease #Criteria #Workup ... #Algorithm #Ddxof
Causes of Fever in the Immunocompromised Host - Differential Diagnosis Algorithm
Structural Defect - Asplenia/HypospIenism
 • Bacteremia/Septic
Causes of Fever ... Differential Diagnosis Algorithm ... Periodontal Disease Complement ... Infection #Fever ... #Causes #Hematology