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Point of Care Testing
Pathology Lab Manual
All Site Content
U1RNP Antibody IgG, RNP Ab IgG, Anti-RNP
2.0 mL blood
Volume and Container
5.0 mL gold top SST blood tube
Storage and Transport
Serum stored refrigerated until ready for transport to Mayo Medical Laboratory Jacksonville
Causes for Rejection
Specimens other than serum, gross hemolysis, gross lipemia
Turn Around Time
3-5 business days from time of collection
Monday-Friday from 8 am-5 pm, except observed holidays
CPT / HCPCS Code
Evaluating patients with signs/symptoms of a connective tissue disease with a positive ANA
Mayo Medical Laboratory Jacksonville
Test performed Monday-Saturday at Mayo Medical Laboratory Jacksonville
Multiplex Flow Immunoassay
See reference lab report
Limitations and Contraindications
Testing is not useful without a positive ANA
A positive result is consistent with a connective tissue disease and MCTD
CPOE Test Name
Ref RNP, Ref Anti-U1RNP
Created at 9/8/2014 5:56 PM by Bradshaw, Keir
Last modified at 9/8/2014 5:56 PM by Bradshaw, Keir
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