Rubella Immune Status (IgG) Test
A rubella immune status test measures IgG antibodies to rubella in a blood sample. Clinicians use this marker to help check a person's immune status — the kind of information sometimes requested for school, work, or planning ahead.
About this test
Rubella is a viral infection, and the body can carry IgG antibodies related to it after past exposure or vaccination. This test measures those antibodies to give a clinician a way to help assess whether a person shows evidence of immunity.
The test is done with a routine blood draw at a Quest patient service center. A phlebotomist collects a sample from a vein, usually in the arm, and the sample goes to the laboratory.
Who might consider this test?
- Need to document immune status for a specific reason: enrolling in a school or healthcare program
- Starting a job with health requirements
- Planning ahead and wanting to know where they stand
Test details
| Quest code | 802 |
|---|---|
| Methodology | Immunoassay |
| Sample type | 1 mL serum |
| Collection | Quest patient service center |
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Additional details
What this test looks at
The test looks at IgG antibodies related to rubella in the blood. IgG is the antibody class generally tied to longer-term immune memory, so its presence is what a clinician uses to help gauge evidence of immunity. The marker describes the antibody picture at the time of the draw and is read in the context of a person's history.
It is worth separating this from a test for current infection. IgG speaks to past exposure or vaccination rather than an active illness, which is why a clinician frames the result around immune status rather than around whether someone is sick right now.
How it is often used
Rubella IgG is frequently requested to document immune status for schools, workplaces, and health programs, and for people planning ahead who want that information on hand. A clinician reads the marker alongside a person's vaccination records to help decide whether the picture looks settled or whether a conversation about next steps is warranted. The test provides information for that discussion rather than a standalone instruction.
Order online and a physician order is included — no doctor's visit and no insurance needed. Your sample is collected at a Quest Diagnostics patient service center.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does a rubella IgG test measure?
It measures IgG antibodies related to rubella in a blood sample. These antibodies are generally associated with immune memory, so the marker helps a clinician check a person's immune status.
Why do people order this test?
It is often requested to document immune status for school, work, or health programs, or by people planning ahead who want to know where they stand. A clinician reads it alongside vaccination history.
Does IgG mean I have a current infection?
No. IgG generally reflects past exposure or vaccination rather than a current illness. A clinician interprets the marker as information about immune status, not about being sick at the moment.
How is the sample collected?
Through a routine blood draw at a Quest patient service center. A phlebotomist takes a small sample from a vein in the arm and sends it to the laboratory for analysis.
Do I need to prepare?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
How much is a Rubella Immune Status test?
$39, paid once at checkout. The price includes the physician's order this test requires and sample collection at a Quest patient service center.