Lab ranges
12 entries
ANA screen — lab reference
A positive ANA requires titer, pattern, symptoms, and disease-specific antibody interpretation.
Anti-CCP — lab reference
Assay-specific; higher values may carry greater specificity.
C-reactive protein (standard CRP) — lab reference
The test method matters. Acute infection, injury, and chronic inflammation may elevate.
Complement C3 — lab reference
Ask your clinician to use performing-lab range and trend with C4/CH50 and disease activity.
Complement C4 — lab reference
Ask your clinician to use performing-lab range and trend.
Cytokines, including IL-6 and TNF-α — lab reference
Sample handling and test methods can change a cytokine result. Compare it with the exact range from your lab and ask why the test was ordered.
Erythrocyte sedimentation rate (ESR) — lab reference
Age, anemia, pregnancy, immunoglobulins, and technical factors affect result.
Fibrinogen — lab reference
Fibrinogen plays a role in blood clotting and can also rise with inflammation. It may help to compare it with other clotting tests.
Immunoglobulin A (IgA) — lab reference
Age and assay-specific. Important when interpreting IgA-based celiac testing.
Immunoglobulin G (IgG) — lab reference
Age and assay-specific. Ask your clinician to consider subclasses or electrophoresis when indicated.
Immunoglobulin M (IgM) — lab reference
Age and assay-specific.
Rheumatoid factor — lab reference
Assay-specific and nonspecific. Ask your clinician to read this result with symptoms and anti-CCP.
About these ranges
These are Dr. Purser’s adult reference ranges. Units, symptoms and health history matter when you discuss a result with your clinician.
