Anal ThinPrep Cytology w/HPV CoTest, Mayo, RefLab
Reference Lab
Acceptable sources:
Rectal
Anal
Thin Prep Vial
Specimen containing CytoRich Red preservative fluid
1. Visualize the anal opening by retracting the buttocks.
2. Moisten Dacron or polyester swab past internal anal sphincter until it abuts the distal rectal wall (4-5cm).
3. Rotate the swab 360 degrees and maintain lateral pressure on swab against the walls of the anus. The swab should bow slightly due to the pressure.
4. While rotating, slowly withdraw the swab.
5. Rotate at least 10 times while withdrawing the swab. This should take 20 to 30 seconds.
6. Immediately place swab in the ThinPrep solution. Swish at least 20 to 30 seconds in the ThinPrep solution.
7. Dispose of the swab.
8. Tighten the cap so that the torque line on the cap passes the torque line on the vial.
9. Place labels on the vial
10. Bag ThinPrep specimens individually as they tend to leak during transport.
Source is required for testing. May be Rectal or Anal
Clinical history is helpful such as lesion etc. May be entered as unknown if not available during processing.