Gynaecology & Obstetrics General 9645852a Regarding clue cells all are true except A Most reliable indicators of bacterial vaginosis. B Vaginal epithelial cells contain many attached bacteria creating stippled border. C Positive predictive value of this test is 95 percent. D 10 percent of epithelial cells should be clue cells. High-Yield Explanation Atleast 20 percent of epithelial cells should be clue cells for diagnosis of bacterial vaginosis.