Methods: In this 9-month retrospective review with follow-up, 26,501 women 30 years of age and older underwent liquid-based Pap screening with concomitant high-risk HPV DNA testing at CellNetix Pathology and Laboratories, Seattle, WA. Of these women, 1,096 (4.1%) were originally interpreted by cytotechnologists as NILM with HPV DNA positivity. Mar 14, 2019 · A Pap smear (Pap test) is primarily a screening test for cervical cancer. It is used to detect abnormal or potentially abnormal cells from the vagina and the cervix, the narrow bottom portion of a woman's uterus. Various bacterial, fungal, and viral infections of the uterus may also be detected using this test.