17 results
Anemia Diagnostic Algorithm

Mean corpuscular (cell) volume (MCV): Average RBC size. Under 80 = microcytic. Between 80-95
Anemia Diagnostic ... Under 80 = microcytic ... of substrate (e.g ... #Workup #Hematology ... #Microcytic #Macrocytic
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
- Differential Diagnosis ... Increased Requirement (e.g ... B12 - Anti-IF Antibodies ... B12 - Anti-IF Antibodies ... Algorithm #Causes #Hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
RBC) Morphology Microcytic ... (sometimes) Macrocytic ... Chemotherapy (e.g ... #differential #diagnosis ... #hematology #microscopy
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
- Differential Diagnosis ... Megakaryopoiesis • Aplastic Anemia ... Autoimmune • ITP • SLE ... Alloimmune • anti-HLA antibodies ... Algorithm #Causes #Hematology
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Myositis Specific Antibodies ... TIF1y, NXP2, Mi-2, SAE ... #MSAs #clinical ... #diagnosis #rheumatology ... #table
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
- Differential Diagnosis ... HgbE, HgbC, etc. ... #Microcytic #Anemia ... #Differential #Diagnosis ... Algorithm #Causes #Hematology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
- Vasculitis, e.g ... - Vasculitis, e.g ... Associations #diseases #diagnosis ... #table #rheumatology ... #antibodies
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Workup History ... ., SLE), anti-phospholipid ... antibodies, Quantitative ... changes), high MCV anemia ... #hematology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... is clinically suspected ... erythematosus #diagnosis ... #rheumatology # ... table #ANA
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
to 1:1 F:M • Clinical ... • Immunologic Workup ... #comparison #table ... #rheumatology # ... diagnosis #management