ThinPrep Screen with Human Papillomavirus (HPV) Reflex
Method Description Describes how the test is performed and provides a method-specific reference
A ThinPrep Pap specimen is collected, processed on a T2000 or T3000 processor, and stained with a Pap stain. Cases are examined microscopically and those with appropriate cytologic diagnoses are referred to the Virology Laboratory for human papillomavirus (HPV) testing if the patient is 21 or older.(Operator's manual: ThinPrep 2000 System, Cytyc, Marlboro, MA; Operator's Manual: ThinPrep 3000 Processor, Cytyc, Marlboro, MA)
The Digene hc2 High-Risk HPV DNA Test using Hybrid Capture 2 (hc2) technology (Qiagen Inc.) is an In Vitro nucleic acid hybridization assay with signal amplification using microplate chemiluminescence for the qualitative detection of 13 high-risk types of human papillomavirus (HPV) DNA in cervical specimens. The HPV types detected by the assay are the high-risk HPV types 16/18/31/33/35/39/45/51/52/56/58/59/68. The hc2 High-Risk HPV DNA Test cannot determine the specific HPV type present. Specimens containing the target DNA hybridize with a specific HPV RNA probe cocktail. The resultant RNA:DNA hybrid is captured onto the surface of a microplate well coated with antibodies specific for RNA:DNA hybrids. Immobilized hybrids are then reacted with alkaline phosphatase conjugated antibodies specific for the RNA:DNA hybrids, and detected with a chemiluminescent substrate. Several alkaline phosphatase molecules are conjugated to each antibody. Multiple conjugated antibodies bind to each captured hybrid resulting in substantial signal amplification. As the substrate is cleaved by the bound alkaline phosphatase, light is emitted that is measured as relative light units (RLUs) on a luminometer. The intensity of the light emitted denotes the presence or absence of target DNA in the specimen. (Package insert: Digene Hybrid Capture 2 High-Risk HPV DNA Test, Qiagen Inc., Gaithersburg, MD. 2007)
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Friday; Varies
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
14 days after report issued
Performing Laboratory Location The location of the laboratory that performs the test