Parietal Cell Gastric Antibody 15114X

Test Code
PCA

Alias/See Also
PCA

CPT Codes
83516

Preferred Specimen
1 mL serum

Minimum Volume
1

Instructions
Draw one SST tube and send serum refrigerated

Transport Container
SST

Transport Temperature
R

Specimen Stability
Room temperature: 8 hours
Refrigerated: 14 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia

Methodology
Enzyme Linked Immunosorbent Immunoassay (ELISA)

Setup Schedule
Set up: Tues, Thurs p.m.; Report available: Next day

Reference Range

≤20.0 U		Negative
20.1-24.9 U		Equivocal
≥25.0 U		Positive

Clinical Significance
Gastric Parietal Cell Antibodies (GPA) test results are used in the diagnosis of pernicious anemia.

Performing Laboratory

Quest Diagnostics Nichols Institute

14225 Newbrook Drive

Chantilly, VA 20153

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.