Total reviews 423
Total reviews 423
Tests Included: 1
Est. 1-3 (business days) Turnaround
Specimen type: Blood
Lab Location
Elevated RF is found in collagen vascular diseases such as SLE, rheumatoid arthritis, scleroderma, Sjogren's syndrome, and in other conditions such as leprosy, tuberculosis, syphilis, malignancy, thyroid disease and in a significant percentage of otherwise normal elderly patients.
Tests Included: 1
Est. 1-3 (business days) Turnaround
Specimen type: Blood
Lab Location
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Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
Note: Turn around times on results are an estimate and are not guaranteed. The lab may need additional time due to holidays, confirmation/repeat testing, etc. You can contact us to discuss when your results should be ready and we will contact the lab on your behalf immediately.
Normal Range: <14 IU/mL
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