14 results
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Warm Antibody Autoimmune ... LDH • Anti-RBC autoantibodies ... type ± C3d • Blood ... smear: Differential ... management #treatment #rheumatology
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
heliotrope, shawl sign ... exclusion Necrotizing Autoimmune ... Inflammatory #Myopathies #differential ... #diagnosis #comparison ... #rheumatology #
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Diagnosis Algorithm ... • Peripheral blood ... idiopathic, malignancy, autoimmune ... HTN) • Recent travel ... /Fevers, DAT (-)
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Malar rash 40% - Fever ... #autoantibodies ... #signs #symptoms ... #mimickers #differential ... #rheumatology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
long (in days) it takes ... • Hemolysis: Autoimmune ... Production #Index #hematology ... #anemia #differential ... #diagnosis #calculation
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... Diagnosis Framework ... noninflammatory Signs ... #Diagnosis #MSK ... #rheumatology #
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Viral infection, autoimmune ... CLL (older) • Autoimmune ... younger pts) Differential ... sensitize red blood ... Symptoms: High fevers
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
of peripheral blood ... Corticosteroid use • Autoimmune ... cultures, including blood ... tachycardia or fever ... #WBC #CBC #hematology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... • Anti-Ro/SSA autoantibodies ... permanent alopecia Differential ... rheumatologic diseases ... #Rheumatology
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
Crossmatch takes ... S/sx: Fever, flank ... RBCs (stored at 4C ... #Transfusions #diagnosis ... #management #hematology