Contraception Flashcards
what is the pearl index?
failure rate per 100 women in year of exposure
average cycle days?
26-32 day cycle
when are you most likely to ovulate during cycle?
day 12 -18
survival of egg? sperm?
egg - 24 hours
sperm - less than 4 days
when is the highest chance of pregnancy?
sex on day 8-19
what is in the combined pill?
ethinyl estradiol
synthetic progesterone
what is CHC regime?
21 days with a hormone free week
can run packs back-to-back
CHC forms?
pill
patch
vaginal ring
CHC non-contraceptive benefits? (4)
regulate/reduce bleeding
improve acne/hirsutism
may aid premenstrual syndrome
50% reduction in ovarian/endometrial cancer
CHC side-effects? (5)
breast tenderness nausea headache mood weight gain
Serious risks associated with CHC?
increased risk of venous/arterial thrombosis
increased risk of cervical/breast cancer
Progestogen only pill (POP) regime?
take at the same time everyday without a pill-free interval
POP side-effects? (6)
increased appetite hair loss/gain mood bloating/fluid retention headache acne
Injectable progestogen regime?
every 13 weeks
what does Depo-Provera do?
prevents ovulation
affects cervical mucus making it hostile to sperm and makes endometrium unsuitable for implantation