Synonym/Acronym:
RF, RA.
Rationale
To primarily assist in diagnosing rheumatoid arthritis.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Immunoturbidimetric for RF; enyzme-linked immunosorbent assay for 14-3-3 eta protein.
| RF | Less than 14 international units/mL | ||||||||||||||||||||||||||||||||||||||||
| 14-3-3 eta protein | Less than 0.2 ng/mL | ||||||||||||||||||||||||||||||||||||||||
| Elevated RF values may be detected in healthy adults 60 yr and older. RF is not useful in monitoring the effectiveness of treatment. | |||||||||||||||||||||||||||||||||||||||||
Critical Findings and Potential Interventions
N/A
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