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Tropheryma whipplei DNA Detection by Rapid PCR (NY)
Test Code900262
CPT Codes
87798
Preferred Specimen
5 mm fresh tissue, submitted in a sterile, plastic leakproof container
Specimens grossly contaminated with blood may inhibit the PCR and produce false-negative results.
Other Acceptable Specimens
5 mm paraffin block; 0.5 mL synovial, vitreous, or spinal fluid submitted in a sterile plastic leakproof vial
Instructions
Submit only 1 of the following specimens:
Specimen Type: Biopsy
Sources: Preferred: Small intestine tissue (duodenum, ileum, or jejunum) Acceptable: Tissue or biopsy specimen of brain, gastrointestinal tissue, heart valve, lymph node, small intestine, synovial tissue, or other visceral tissue fixed in a paraffin block
Container/Tube: Sterile container
Specimen Volume:Entire collection
Collection Instructions: Collect fresh tissue specimen.
Specimen Type: Spinal, synovial, or vitreous humor fluid
Container/Tube: Sterile vial
Specimen Type: Biopsy
Sources: Preferred: Small intestine tissue (duodenum, ileum, or jejunum) Acceptable: Tissue or biopsy specimen of brain, gastrointestinal tissue, heart valve, lymph node, small intestine, synovial tissue, or other visceral tissue fixed in a paraffin block
Container/Tube: Sterile container
Specimen Volume:Entire collection
Collection Instructions: Collect fresh tissue specimen.
Specimen Type: Spinal, synovial, or vitreous humor fluid
Container/Tube: Sterile vial
Transport Container
Sterile Container, leak-proof
The high sensitivity of amplification by PCR requires the specimen to be processed in an environment in which contamination of the specimen by Tropheryma whipplei DNA is not likely.
Transport Temperature
Fresh Tissue (preferred): Frozen
Paraffin Block: Room temperature
Fluid: Refrigerated (cold packs)
Paraffin Block: Room temperature
Fluid: Refrigerated (cold packs)
Specimen Stability
Fresh Tissue:
Room temperature: Unacceptable
Refrigerated: 48 hours
Frozen: 7 days
Parrafin Block:
Room temperature: indefinitely
Refrigerated: Indefinitely
Frozen: Indefinitely
Fluid
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 7 days
Room temperature: Unacceptable
Refrigerated: 48 hours
Frozen: 7 days
Parrafin Block:
Room temperature: indefinitely
Refrigerated: Indefinitely
Frozen: Indefinitely
Fluid
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 7 days
Methodology
Polymerase Chain Reaction
FDA Status
**This test is for New York State clients only. For non-New York State patient testing, use Test Code 11352X [11769] Tropheryma whipplei DNA Detection by Rapid PCR.
Setup Schedule
Set up: Mon, Wed, Fri a.m.; Report available: 9 days
Reference Range
See Laboratory Report
Clinical Significance
Test is used for the diagnosis of Whipple's disease, especially for identifying inconclusive or suspicious cases.