How reliable is my patient’s result?
Measurement of uncertainty refers to the extent of variation of results at a given value within our assays. This can be affected by a multitude of factors. We generate data over an extended period of time for each of our quantitative assays in order to provide a measure of the expected range in results.
This aids the clinician to determine the significance of any change in concentration of a given analyte – particularly relevant for those tests used in monitoring.
Summary tables below contain uncertainty of measurement values for our assays.
- Automated serology – includes total IgE, allergen specific IgE, IgA & IgG TTG (coeliac serology), CCP antibodies, MPO/PR3 antibodies, GBM antibodies, dsDNA antibodies, ENA antibodies (screen & identities), IgG Aspergillus antibodies, tryptase.
- Specialist techniques – includes acetylcholine receptor antibodies, GAD antibodies (for Diabetes and Stiff Person Syndrome), intrinsic factor antibodies and functional antibodies.
- Immunochemistry (Optilite) – includes serum free light chains and C1 inhibitor (quantitative assay).
- Complement function – includes C1 inhibitor function, classical complement function, alternative complement function.
- Flow cytometry – including lymphocyte subsets analysis for CD3+ CD4+/CD8+ T cells, CD19+ B cells and CD16/56+ NK cells (percentages and absolute counts)
Please contact the laboratory to discuss if required.