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Pepsin A Assay
Test Code39894
CPT Codes
83516<br /> This test is not available for New York patient testing<br /> Restricted Client Code
Preferred Specimen
1 mL tracheal or bronchial fluid collected in a standard transport tube
Minimum Volume
0.5 mL
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Methodology
Enzyme-Linked Immunosorbent Assay (ELISA)
Setup Schedule
Set up: Mon-Fri; Report available: 5-9 days
Reference Range
Pepsin A Reference Range (Units):
<3.0 negative
3-50 weak to moderate positive
>50 strong positive
Protein Unit = mg/mL
One unit of pepsin A = 0.1 ng/mL
<3.0 negative
3-50 weak to moderate positive
>50 strong positive
Protein Unit = mg/mL
One unit of pepsin A = 0.1 ng/mL
