RNP antibody

Alphabetical Test listing

RNP antibody-12661

Test name:

RNP antibody

Test number:

12661

Excellian order number:

LAB12661

Alternate names:

Anti RNP
Anti Ribonucleoprotein ENA antibody

Useful for:

Antibodies to RNP occur in approximately 50% of patients with lupus erythematosus (LE) and in patients with other connective tissue diseases, notably mixed connective tissue disease (MCTD).

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Red/grey serum separator (SST) vial/tube, 10 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

False bottom plasma/serum transport vial/tube (AHL)

Red/grey serum separator (SST) vial/tube, 10 mL

Transport and stability:

Refrigerated (preferred) - 7 days

Frozen (OK)

Ambient - 24 hours

Reason for rejection:

Improper labels (unlabeled or mislabeled)
Hemolysis (some procedures)
Improper anticoagulant or ratio
Delay in transport
Improper storage temperature affecting results
Improper container
Leaking container resulting in compromised specimen
Quantity not sufficient (QNS)

Performing lab:

AHL - Immunology: J

Days set up:

Mo, We, Fr

TAT:

2 - 4 days

Method:

Chemiluminescent Immunoassay (CIA)

Reference ranges:

Negative: < 20 CU

Strong positive: ≥ 20 CU

CPT codes:

86235

Date created:

11/10/2015

Revised date:

02/03/2022

Review date:

11/19/2021