Test Update

Anti-dsDNA Antibody Testing

Anti-dsDNA antibody samples received by the laboratories must be accompanied by relevant clinical details, and prior testing history, to be processed. Background Antibodies to native or double-stranded DNA are found primarily in systemic lupus erythematosis (SLE). They are thought to be involved in the pathogenesis of the most severe forms of SLE when deposited as […]

Discontinuation of Heliobacter pylori serology

Canterbury SCL would like to inform referrers that Helicobacter pylori serology will no longer be routinely available from Friday 31 July 2020. H. pylori serology is a test that measures IgG antibodies specific to H. pylori in serum as evidence of infection at some time. This test is unable to determine if antibodies are present […]

Clinical details required for ESR testing

As of 13 July 2020 all ESR samples received by the laboratories must be accompanied by relevant clinical details in order to be processed. ESRs without relevant clinical details, as per table below, will not be processed. Systemic lupus erythematosus (SLE) in childrenJuvenile idiopathic arthritisKawasaki diseaseRheumatic feverSuspected prosthetic joint inflammationPolymyalgia RheumaticaTemporal (giant cell) arteritis Requesting […]

Aptima Multitest Kits

Our supplier of the Aptima Multitest collection kits have informed us these are on global allocation and this product is on backorder. We are expecting kits to arrive in around 2- 3 weeks time. Please stock for your requirements only and do not overstock. If you have stock of any short-dated collection kits close to expiry, […]

Diagnostic Testing for Scabies in Canterbury

The diagnosis of scabies is usually made clinically, as although laboratory testing can be performed by taking scrapings from the suspicious looking area of skin, this has very poor sensitivity. Like other regions in New Zealand, the positivity rate for scabies laboratory examination is very low in Canterbury, at < 10% of all collections. This […]

Discontinuation of Reporting Anti-thyroglobulin as part of the Thyroid Antibody Screen

From Monday 10th February 2020 Canterbury SCL (CSCL) and Canterbury Health Laboratories (CHL) will no longer report anti-thyroglobulin (anti-Tg) as part of the routine thyroid antibody screen. Given the superior clinical utility of anti‐thyroid microsomal (anti‐TPO) antibodies, when thyroid antibodies are ordered the laboratory will perform anti‐thyroid microsomal (anti‐TPO) antibodies only. The most common cause […]