HPV Genotypes 16, 18/45, Anal-Rectal
Test Code
Clinical Significance
HPV Genotypes 16, 18/45, Anal-Rectal - Assay is used in combination with anal and rectal cytology to assess the presence or absence of high-risk HPV genotypes 16, 18, and/or 45. This information together with physician's assessment of cytology history, other risk factors and professional guidelines, may be used to guide patient management.
Test Resources
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Test Details
Methodology
Reference Range(s)
Preferred Specimen(s)
Anal/rectal specimen collected using a dacron/polyester swab or anal/rectal brush and submitted in 3 mL Preservcyt® transport medium ThinPrep® vial or Aptima® specimen transfer tube (green label)
Minimum Volume
1.5 mL
Collection Instructions
To collect an anal-rectal sample, a wetted, non-lubricated Dacron/Polyester swab is used. The Dacron/Polyester swab is inserted about 3 cm (or until resistance is met) into the anal canal past the anal verge, into the rectal vault. This is done without visualization of the anal canal. Firm lateral pressure is applied to the swab handle as it is rotated and slowly moved in and out. Slowly withdraw swab from the anal canal. Swish the swab vigorously in PreservCyt® fluid in the ThinPrep® vial. Discard the swab. Cap and tighten the ThinPrep® vial.
Follow the same procedure if using a brush to collect an anal-rectal sample. Avoid using cotton swab on a wooden stick because the handle may break and splinter during collection. Swab that is grossly contaminated with feces should be discarded and the collection repeated.
Transport Container
Liquid Cytology (PreservCyt®) Preservative (ThinPrep®) vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 30 days
Refrigerated: 30 days
Frozen: Not established
Setup Schedule
Follow the same procedure if using a brush to collect an anal-rectal sample. Avoid using cotton swab on a wooden stick because the handle may break and splinter during collection. Swab that is grossly contaminated with feces should be discarded and the collection repeated.
Refrigerated: 30 days
Frozen: Not established