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Laboratory Test Reference Guide

Laboratory Information

Test Name

Rheumatoid factor

External Price (excl. GST)

15.36

Specimen Collection

Adult Specimen

Gold or Red tube

Paediatric Specimen

Paediatric Gold or Red tube

Instructions for Referral to Waikato Lab

Aliquot instructions

200uL Serum

Aliquot Transport

Chilled

Test Information

Department

Biochemistry

Test Availability

Mon - Sun, 24hrs

Laboratory Turnaround Time

6 hours

Method

Turbidimetry

Unit of measurement

IU/mL

Reference interval

0-20 IU/mL (Calibrated against the WHO Standard).
Normal levels increase slowly with ageing.

Uncertainty of measurement

<15%

Electronic Information

LOINC Code

11572-5

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