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Test ID GRAB Giardia Antibody, IFA

Method Name

Immunofluorescence Assay (IFA)

Reporting Name

Giardia lamblia Ab, IFA

Specimen Type

Serum

Draw blood in a plain, red-top tube(s). Spin down and send 1 mL of serum refrigerated.

 

Note: Serum gel tube is acceptable, but must pour off into a plastic vial.

Specimen Minimum Volume

0.075 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Frozen  30 days
  Ambient  5 days

Reference Values

REFERENCE RANGE:  <1:16

 

INTERPRETIVE CRITERIA:

<1:16    Antibody Not Detected

1:16  Equivocal; submission of a second specimen (collected 3-4 weeks after initial specimen) suggested if clinically warranted

≥ 1:32 Antibody Detected

 

A polyvalent conjugate (recognizing IgG, IgM and IgA) is used to detect the presence of antibodies to Giardia lamblia.  A four-fold or greater increase in titer between acute and convalescent sera indicates an acute active phase.  A single positive reaction represents previous exposure, since antibody titers are known to remain high for at least six months.

Day(s) Performed

Monday through Saturday

Report Available

1 - 3 days

Performing Laboratory

Focus Diagnositics, Inc.

Test Classification

This assay was developed and its performance characteristics have been determined by Focus Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. Performance characteristics refer to the analytical performance of the test.

CPT Code Information

86674

NY State Approved

No