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
disadvantages of Depo-Provera?
delay in return to fertility (9m)
reduction in bone density
problematic bleeding
weight gain 2/3rd women
Progestogen implant method of action?
inhibition of ovulation and effect on cervical mucus
disadvantage of implant?
may cause long/prolonged bleeding
may cause mood change more often than other progestogen methods
Copper IUD?
toxic to sperm
hormone free
may make periods heavier
can last 5-10y
Levonorgestrol IUS?
affect cervical mucus and endometrium most women still ovulate
slow release progestogen on stem
Miren and Kyleena
emergency contraception? (3)
copper IUD most effective option (fit within 120h)
Levonorgestrel (72h)
Ulipristal pill (120)
Abortion consultation?
scan for gestation/viability medical history circumstance - reason what to expect contraception STI bloods offered
5-12w surgical termination?
cervical priming with prostaglandin
GA or LA block
transcervical 6-10mm suction catheter
5-24w medical termination?
Mifepristone oral antiprogestogen tablet
36-48hr later misoprostol initiates uterine contractions which opens cervix and expels pregnancy
4-6 hour to pass pregnancy under 12 weeks
