Uncertainty of measurement
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.
- Neuroimmunology - includes acetylcholine receptor antibodies, MAG antibodies, GAD antibodies (Stiff Person Syndrome).
- Immunochemistry - includes functional antibodies, intrinsic factor, GAD antibodies (diabetic serology), serum free light chains, C1 inhibitor (quantitation).
- Complement function - includes C1 inhibitor function, classical complement function, alternative complement function.
Please contact the laboratory to discuss if required.