In a Changing Clinical Environment, the Indirect Immunofluorescent Assay (IFA)

question 8

Multiple Choice

In a changing clinical environment, the indirect immunofluorescent assay (IFA) has been replaced with the enzyme immunoassay (EIA) . A disadvantage of this trade-off to EIA is

• A)lower cost.
• B)that it is slower in producing results.
• C)that it is more technically challenging and requires more training and experience.
• D)that it is problematic for patients with less than a 1:160 antinuclear antibody (ANA) titer.

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