Rubella IgM antibodies

Microbiology

Notes

This test is used to detect current or recent Rubella infection

• The information given here is intended for use by healthcare professionals. Please see Lab Tests Online-UK for more general advice, links and background.
• Rubella IgG avidity can be used to indicate how recently infection has occurred. This is usually of use in pregnancy and should only be requested after discussion with a Consultant Microbiologist.
• To screen for Rubella immunity, please request Rubella IgG
• Consider Rubella infection in any pregnant woman presenting with a rash regardless of previous immune status
• This test is part of the following viral screen sets:
  • Joints screen
  • Rash screen
  • TORCH screen
• Rubella is a notifiable disease. Click for notification form.
• Suspected cases can also be confirmed by a MMR oral fluid test; kits are available from the Health Protection Team on 0300 303 8162
  

Sample requirements

Serum - paired samples not normally required

8.5ml of blood taken into a plain gel tube

Required information

• Relevant clinical details
• Date of onset
• Details of pregnancy
• Details of exposure to other suspected cases
• Vaccination history

Storage/transport

Store at fridge temperature

Transport as soon as possible at ambient temperature

Turnaround time

3 - 5 days