Celio Health
0
Shop TestsPanels & Bundles How It WorksWhat Tests CostAbout UsFind a Quest locationBlog
Log in or create account
Lab test

Ribosomal P Antibody Test

This test measures the amount of ribosomal P antibody in a blood serum sample. It can be ordered through Celio Health.

Blood drawQuest patient service center

About this test

A 1 mL serum sample is analyzed using an immunoassay method to measure ribosomal P antibody levels. Quest also lists this test under the alias Ribosomal P Protein Ab.

Quest describes ribosomal P antibody as found in about 5-10% of patients with systemic lupus erythematosus (SLE), so testing may be used as part of an evaluation related to SLE. Because the antibody appears in only a portion of people with the condition, a result is read by a clinician alongside symptoms, history and other findings rather than on its own.

Test details

Quest code34283
MethodologyImmunoassay
Sample type1 mL serum
CollectionQuest patient service center

Reference range

<1.0 AI Negative

Reference ranges are general guidance. The range printed on your own laboratory report is the one that applies to your result.

Related tests and panels

View all
Beta-2-Glycoprotein I Antibodies (IgG, IgA, IgM)

Measures IgG, IgA, and IgM antibodies to beta-2-glycoprotein I, related to…

$569
C-Reactive Protein (CRP)

Measures C-reactive protein, a blood marker associated with inflammation in the…

$29
C-Reactive Protein-hs

Measures high-sensitivity C-reactive protein (hs-CRP), an inflammation marker…

$45

Quest resources

Additional details

What this test looks at

The test reports one value: the amount of ribosomal P antibody present in serum. Quest lists this antibody as appearing in roughly 5-10% of patients with systemic lupus erythematosus, which is why testing may come up as part of an SLE-related evaluation.

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 this test measure?

It measures the amount of ribosomal P antibody in a serum sample, using an immunoassay method.

How is the sample collected?

The test uses a 1 mL serum sample from a routine blood draw.

Do I need to prepare for this test?

No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.

Why might a clinician order this test?

Quest describes ribosomal P antibody as found in about 5-10% of patients with systemic lupus erythematosus (SLE), so testing may be used as part of an SLE-related evaluation.

Is this test known by another name?

Yes. Quest lists the alias Ribosomal P Protein Ab for this test.

What does a Ribosomal P Antibody test cost without insurance?

$200. Celio Health's price is a flat cash price and insurance is never billed: the required physician's order is included.

Last updated 2026-09-18 · How we write about lab testing

Educational content

This page is for general educational purposes only. It is not medical advice, and it is not a substitute for consultation with a qualified healthcare professional. Laboratory results should always be interpreted by a licensed clinician who knows your health history. If you have questions about your health or your results, talk with your doctor. If you think you may be experiencing a medical emergency, call 911.