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CFTR INTRON 8 POLY-T ANALYSIS(O)
Test CodeCFTR INTRON 8 POLY-T ANALYSIS(O)
CPT Codes
81224
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
3 mL
Instructions
Whole blood: Normal phlebotomy procedure. Specimen stability is crucial. Store and ship room temperature immediately. Do not freeze.
Transport Container
EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable
Refrigerated: 8 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Frozen: Unacceptable
Methodology
Multiplex Polymerase Chain Reaction • Next Generation Sequencing
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Tues, Fri
Report Available
8-12 days
Clinical Significance
CFTR Intron 8 Poly-T Analysis - This test is utilized for the following indications:
1) To evaluate individuals having phenotypes associated with mild forms of cystic fibrosis, congenital absence of the vas deferens (CBAVD), idiopathic pancreatitis, bronchiectasis, etc.
2) To confirm a diagnosis of CBAVD in infertile males.
3) To determine the poly T status in individuals positive for the R117H mutation
1) To evaluate individuals having phenotypes associated with mild forms of cystic fibrosis, congenital absence of the vas deferens (CBAVD), idiopathic pancreatitis, bronchiectasis, etc.
2) To confirm a diagnosis of CBAVD in infertile males.
3) To determine the poly T status in individuals positive for the R117H mutation
Performing Laboratory
Quest Diagnostics
Additional Information
Click here
Last Updated: September 10, 2026
