|Downtime form:||A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery|
|Red top tube 5 mL (Clot Activator)|
Equivocal: 20.1-24.9 Units
Positive: > or =25.0 Units
Reference values apply to all ages.
A negative result indicates no detectable IgG antibodies to H(+)/K(+) ATPase; it does not rule out PA.
An equivocal result is indeterminate.
The presence of immune complexes or other immunoglobulin aggregates in the patient specimen may cause an increased non-specific binding and produce false-positive results in this assay.
A negative result does not rule out the presence of parietal cell antibodies; the concentration of antibody may be below the detection limit of the assay.
A positive result only indicates the presence of antibody to H(+)/K(+) ATPase and does not necessarily indicate the presence of autoimmune disease or other diseases.
The assay performance has not been established for pediatric patients.
Results of this assay should be used in conjunction with clinical findings and other serological tests.
The assay performance characteristics have not been established for matrices other than serum.