Within North Bristol NHS Trust (NBT)

  • Samples for Blood Sciences: (Biochemistry, Haematology and Immunology) and Infection Sciences: (Bacteriology, Virology, Antimicrobial assays (ARL) and Mycology (MRU)) should be sent via the air tube unless the sample type/reason appears in the list below.
  • Samples that MUST NOT be sent via the air tube include:
    • Urine for TB or suspected TB
    • Viral haemorrhagic fever
    • Histology or cytology
    • Category 4 microbes
    • Volumes over 100ml
    • Samples which need to remain frozen (e.g. via dry ice)
    • Samples which need to be kept warm (e.g. cryoglobulins)
  • Samples for COVID-19 can be sent via the air tube, but these MUST be double-bagged, sealed and sent in a new leak-proof carrier.


For Primary Care locations where Pathology Services are provided by North Bristol NHS Trust (NBT)

Sample collections are made by the Pathology’s appointed medical courier City Sprint. For queries regarding this service please email Allison Brixey, Blood Sciences Manager, at


Page updated 09/07/2021