Measles, Mumps and Rubella tests are primarily used to confirm that a person is immune to the viruses due to previous infections or vaccination and to determine if you have sufficient rubella antibodies to protect you from the rubella virus.

Measles or mumps IGM and IGG antibody tests and/or acute and convalescent IGG antibody testing may be ordered when a doctor suspects that a person has a current or recent measles or mumps infection. An IGG antibody test for measles or mumps may be ordered whenever a doctor wants to determine whether a person is immune to one or both of the viruses, either because of a previous infection or due to vaccination.