Login to South West London Pathology Services

If you have any queries about pathology consumables – you need a new account or you have a query about your order, please telephone 020 8266 6827. Forgotten your password

Cryoglobulins

Category Immunology and PRU
Turnaround time Weekly

Additional information

St Georges Hospital – please call the Immunology laboratory on ext 0025 to arrange for warm blood tubes to be brought to the phlebotomist.

Croydon/Kingston Hospital – please call pathology to collect pre-warmed tubes.

St Helier Hospital – please collect pre-warmed tubes from pathology reception.

External laboratories – please send a serum sample and a plasma sample (5ml of each) where the samples have been collected into pre-warmed blood tubes and maintained at 37C by a verified method during sample transport, clotting and separation.  Samples can be sent at ambient temperature.

Additional information

The laboratory looks for the presence of a cryoprecipitate at 7 days and interprets the results in the context of the IgG, IgA, IgM, C3, C4 and rheumatoid factor concentrations and protein electrophoresis results. Any cryoprecipitate is analysed to determine what it consists of and the cryoprotein type will be reported.

Quantification of the cryoprecipitate by cryocrit is not done routinely and is not generally necessary, but can be done on special request after discussing with the Immunology Consultants on 0208 725 5106.

Lab Tests Online UK

Lab Tests Online - UK is a website written by practising laboratory doctors and scientists to help you understand the many clinical laboratory tests that are used in diagnosis, monitoring and treatment of disease.

Click here to go to Labtestsonline.org.uk

  • Search Tests

Latest news

July 27, 2026

Learning from Bordeaux: shaping the future of our GP hub

Our managing director, Simon Brewer, led a team from the South West London to Bordeaux, France to visit one of Europe’s most advanced diagnostic laboratories, a trip that is now directly shaping plans for SWLP’s own GP hub.

Read more
July 8, 2026

New test codes for requesting immunoglobulins – Epsom and St Helier hospitals and GPs only

Immunoglobulin and serum protein electrophoresis requesting is changing on 8 July 2026. Clinicians can now request immunoglobulins only or immunoglobulins and electrophoresis. This change will enable doctors to more effectively request the tests that are clinically indicated and streamline laboratory testing, delivering improved turnaround times for these tests. This change will apply to Epsom & St Helier Hospitals and their associated GPs initially, and will then be rolled out to all service users in south west London.

Read more
June 12, 2026

Kim Brown: gesh celebrating an NHS leader and mentor 27 years in the making!

After 27 years of dedicated service to the NHS, Kim Brown, Technical Lead in Biochemistry, has finally received the recognition she richly deserves through the gesh Long Service Awards.

Read more
June 8, 2026

From Milton Keynes to Network Lead: Sewa Joacquim-Hearne on collaboration, chaos, and a career in blood transfusion

Just three weeks into her new role as Blood Transfusion (BT) Network Lead for SWLP, Sewa Joacquim-Hearne is already on the move. Based at St George’s Hospital but with a presence planned across all five sites, including Epsom, St Helier, Kingston, and Croydon, she is taking on a role that is as much about connection as it is about clinical expertise.

Read more