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HIV-1 Proviral Tropism Testing

Alias: Human Immunodeficiency Virus, HIV-1

Discipline: Virology

Test information: Tropism assays are used to determine co-receptor usage of HIV-1 in patients who may be candidates for treatment with CCR5 antagonists. Tropism testing is strongly recommended in all patients who have virological failure for whom a CCR5 antagonist is being considered as part of the subsequent treatment.

Availability: Referred to UK Health Security Agency (UKHSA) the antiviral unit (AVU): Monday - Friday during routine hours: 08:45 - 17:15.

Turnaround Time: 21 Days upon receipt at UK Health Security Agency (UKHSA) the antiviral unit (AVU)

Related Tests:

Specimen Type(s)
  • EDTA Whole Blood;
Other Acceptable Specimen Type(s)
Specimen Container - Adult
  • Purple Top BD;
Specimen Container - Paediatric
  • N/A;
  • N/A;
Part of a test profile?
Volume (min) of sample to be sent to laboratory
Whole Blood: 10 - 20mL
Please note this test requires > 1 mL of plasma to perform.
Patient Preparation, Sample Handling and Transport
  • Specimens should be transported to the laboratory as soon as possible
  • Whole blood samples are stable up to 24 hours at 2 - 30 °C
Maximum add on time
Units and Reference Ranges / Interpretation
Reference report sent directly to requestor.
UKAS number
UKAS accredited test?

If you have any queries about a test or results interpretation please contact us.

Last updated: 31-05-2023