Rubella IgG antibodies

Microbiology

Notes

 

  • This test is used to screen for Rubella immunity. As from 01/04/16, following the decision of Public Health England and the Department of Health , Rubella immunity is no longer routinely tested for as part of an antenatal screen. Please contact the laboratory if there is a clinical need for testing.
  • If Rubella infection is suspected, please request Rubella IgM antibodies
  • Satisfactory evidence of Rubella immunity is defined as:
    • at least two previous Rubella IgG antibodies screening tests with detectable antibody greater than 10 iu per ml or;
    • at least two documented doses of Rubella vaccine or;
    • one documented dose of vaccine followed by one Rubella IgG antibody screening test with detectable antibody greater than 10 iu per ml
  • Antibody levels may fall with time. Providing that the criteria above are met a subsequent negative antibody test does not indicate loss of immunity.
  • When blood is submitted for rubella antibody testing, results should be reviewed together with vaccination history and previous results.
  • Second Rubella infections despite immunity, have been documented. If there is clinical suspicion (especially in pregnancy) please contact the Consultant Microbiologist to discuss.

Sample requirements

Serum - paired samples not required

8.5ml of blood taken into a plain gel tube 

8.5mL BD Vacutainer tube

Required information

  • Relevant clinical details

Storage/transport

Store at fridge temperature

Transport as soon as possible at ambient temperature

Turnaround time

3 - 5 days


Page last reviewed: 04/04/2016