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RA (Rheumatoid Arthritis) Test

SIM

50255 

CPT

86431 

Synonyms

RA Screen, Rheumatoid, Rose, RF (Rheumatoid Factor) 

Specimen Type

Serum 

Container

3.5 ml Green - Lithium heparin plasma separator 
4.0 ml Gold-top serum separator 

Collection Instructions

None

Volume

2 ml Serum or Plasma 
Min:  0.5 ml 

Additional Information

none

Patient Preparation

none

Specimen Processing Instructions

Plasma:  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes

Serum:  Allow to clot.  Centrifuge at 3380 rpm’s (±100) for a minimum of 10 minutes

Centrifuge within 2 hours of collection.

Transport Requirements

Refrigerated

Specimen Stability

Room temperature:  8 hours   Refrigerated: 7 days 

Rejection Criteria

 

Reference Range

<14 IU/ml

Critical Value

none 

Test Includes

RF 

Methodology

Latex Particle Immunoturbidimetric 

Testing Frequency

Monday – Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

2/2/2018

Supplemental

 

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