Table 1.

Suggested diagnostic evaluation for CAIHA

Suggested adult CAIHA workup
Hematologic testingRequired for pediatrics
CBCa Yes 
Peripheral smeara Yes 
DATa Yes 
Hemolysis screena Yes 
LDH, haptoglobin, bilirubin, reticulocyte count, urinalysis  
Cold agglutinin titera  
Thermal amplitude  
C3 and C4 levels Based on clinical scenario 
Immunoglobulin quanitification Based on clinical scenario 
Serum protein electrophoresis + immunofixationa  
Bone marrow studiesa  
Histologic examination  
Flow cytometry  
Infectious workup  
Mycoplasma Recommended 
Viral testing: HIV, HBV. HCV, EBV Recommended 
Autoimmune screening  
Antinuclear antibodiesa Based on clinical scenario 
dsDNA Based on clinical scenario 
Malignancy screeninga  
CT chest abdomen and pelvis  
Suggested adult CAIHA workup
Hematologic testingRequired for pediatrics
CBCa Yes 
Peripheral smeara Yes 
DATa Yes 
Hemolysis screena Yes 
LDH, haptoglobin, bilirubin, reticulocyte count, urinalysis  
Cold agglutinin titera  
Thermal amplitude  
C3 and C4 levels Based on clinical scenario 
Immunoglobulin quanitification Based on clinical scenario 
Serum protein electrophoresis + immunofixationa  
Bone marrow studiesa  
Histologic examination  
Flow cytometry  
Infectious workup  
Mycoplasma Recommended 
Viral testing: HIV, HBV. HCV, EBV Recommended 
Autoimmune screening  
Antinuclear antibodiesa Based on clinical scenario 
dsDNA Based on clinical scenario 
Malignancy screeninga  
CT chest abdomen and pelvis  
a

Minimum required for diagnosis of CAD vs CAS; other studies based on clinical scenario.

EBV, Epstein-Barr virus; HBV, hepatitis B virus; HCV, hepatitis C virus.

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