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Test ID: FGIAR    
Giardia lamblia IgG, IgA, IgM Antibody Panel, IFA

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.


                                    IgA  <1:16

                                    IgM  <1:20


Recent or current infection by Giardia lamblia is suggested by either detection of IgM antibody or a four-fold increase in IgG and/or IgA antibody titers between acute and convalescent sera.  Positive IgG and/or IgA titers without detectable IgM suggest past infection.