Gynaecology & Obstetrics 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. 💡 Explanation Regarding clue cells all are true except ✓ Correct Answer: D. 10 percent of epithelial cells should be clue cells.