Gastric Pepsin A, Respiratory
Also known as: PEPSIN
Use
The Gastric Pepsin A, Respiratory test is utilized for detecting the presence of gastric pepsin A in respiratory specimens like bronchial wash, broncheoalveolar lavage (BAL), or tracheal aspirate. This test aids in the diagnosis of gastroesophageal reflux into the respiratory tract, which can lead to respiratory complications. Detection of pepsin A in respiratory samples is significant as it indicates gastric contents have reached the respiratory tract, which can be a marker for conditions such as laryngopharyngeal reflux.
Special Instructions
Not provided.
Limitations
The test may not be suitable for all patient populations as reference values are based on pediatric cases. Ambient or refrigerated specimens are unacceptable, and test results are contingent on the correct sample handling and processing. Interpretations are based on enzymatic assay results and may vary with changes in experimental conditions or sample integrity. Specimens should be tested separately for multiple test orders as the test is not performed at ARUP.
Methodology
Other
Biomarkers
Pepsin A
Analyte
LOINC Codes
- 80831-1 - Pepsin A Pnl Lower resp
Result Turnaround Time
6-12 days
Related Documents
For more information, please review the documents below
Specimen
Bronchoalveolar Lavage
Volume
2 mL
Minimum Volume
0.5 mL
Container
ARUP standard transport tube
Collection Instructions
Transfer 2 mL respiratory specimen to an ARUP standard transport tube and freeze immediately.
Storage Instructions
Frozen
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 3 months |
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