Clinical Relevance of Anti-Neutrophil Cytoplasm Antibody (ANCA)in Hospitalized Patients
Clinical Relevance of Anti-Neutrophil Cytoplasm Antibody (ANCA)in Hospitalized Patients
Laboratory testing of Anti-Neutrophil Cytoplasm Antibody (ANCA) is used to confirm diagnosis
 of patients who have a high level of suspicion for ANCA-related vasculitis. In these patients
 the specificity and sensitivity to the ANCA test is very high. This study hopes to prove that
 when this lab test is performed on blood of patients who do not have a high level of
 suspicion for ANCA-related vasculitis, the sensitivity and specificity is reduced and there
 are many false positive results. Because of this, it should not be used as a screening test
 for a more general patient population.
Inclusion Criteria:

 -  Blood samples sent for ANCA lab test

 Exclusion Criteria:

 -  Patients with ANCA vasculitis

 -  Patients with known malignancy