2337 Rheumatoid Factor

Specimen:

Collect:

One 7.5 mL SST

Also Acceptable
One 4 mL Green Top (Li Heparin)
One 4 mL Green Top (Na Heparin)
One 4 mL Lavender (EDTA)
One 4 mL Lavender (EDTA)

Submit:

1 mL (Min:0.5 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
1 mL (Min:0.5 mL) Plasma. Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling:

Allow specimen to clot completely at room temperature
Separate from cells ASAP

Rejection Criteria:

Grossly Lipemic Samples

Stability:

Ambient: 1 Day(s); Refrigerated: 8 Day(s); Frozen: 3 Month(s); Incubated: Unacceptable

Methodology:

Turbidimetric

Performed:

Mon-Fri

Reported:

1-3 Day(s)

CPT Codes:

86431

Interpretive Data:

General Reference Range : <20 IU/ml