While using a vaginal diaphragm for contraception, what precaution should be kept in mind?

QC1eoeBCdAjnRILQsKeYeC
E6 Obstetrics Williams p. 83-95
E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 188-190
Practise the full HSSC Staff Nurse - 2015
Attempt every question from this paper in a timed mock, then review the full solution for each one.