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Oxford University Hospitals NHS Foundation Trust
Microbiology

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Screening for sexually transmitted infections (STI)

Sexually transmitted infections (STI) are passed from one person to another through unprotected sex or genital contact. Testing for STI can be done through GPs or through the Sexual Health Clinic:

In conjunction with the sexual health clinics, OUH Microbiology tests for:

  • Chlamydia
  • Gonorrhoea
  • Candida
  • Trichomonas
  • Bacterial vaginosis
  • Herpes
  • Non-specific urethritis (in men)
  • HIV
  • Syphilis
  • Hepatitis B
  • Hepatitis C.

Specimen requirements

Samples should be transported to the laboratory as soon as possible. If specimen transport will be delayed, e.g. from primary care, specimens should be stored in a refrigerator until transported to the laboratory.

From GPs

  • High and low vaginal swabs in appropriate transport medium: used for investigation for bacterial pathogens and Candida (not Gonorrhoea)
  • Cervical specimens: as above and for culture of Gonorrhoea
  • Male urethral swabs: used for culture of bacterial pathogens and candida including Gonorrhoea.
  • Molecular testing for Chlamydia, Gonorrhoea, Herpes and Trichomonas vaginalis
  • Molecular testing for Chalmydia: kits are available from Haematology stores.
  • Female genital samples: BD collection kit for endocervical specimens
  • Male urine: BD urine preservative transport kit, send first pass after holding urine for two hours
  • Sites other than genital, please specify on request: BD dry transport kit
  • GPs only should fax their order to: 01865 221778

From Sexual Health Clinic

  • Molecular testing for Chlamydia, Gonorrhoea, Herpes and Trichomonas vaginalis
  • Female genital samples: BD collection kit for endocervical specimens
  • Male urine: BD urine preservative transport kit, send first pass after holding urine for two hours
  • Sites other than genital, please specify on request: BD dry transport kit.
  • Please send a separate sample for Herpes testing.
  • Blood (clotted): HIV, Syphilis, Hepatitis B and Hepatitis C

Laboratory turnaround time

The laboratory turnaround time for these tests is between two and seven days.

Laboratory method

Chalmydia, Gonorrhoea, Trichomonas and Herpes are tested using the BD Viper™.

Bacterial pathogens and Candida are grown in the laboratory on specialist media. From this the laboratory is able to perform antimicrobial susceptibility testing on all Gonorrhoea and upon request on Candida.

Blood tests are run on the Abbott Architect™ i2000SR and the DiaSorin Liason® XL.

Where to find results of these tests

  • All results are returned electronically where possible (EPR, SunquestICE).
  • Some results may be phoned to clinicians and GPs.
  • Results are never given directly to patients by the laboratory staff.

Further information and contact details

For further information please email:

Confidential patient information should only be sent from nhs.net accounts.