contraception Flashcards
how does contraception prevent ovulation
suppresses FSH and LH
how can contraception prevent fertilisation
coil creates a hostile mucous effect which reduces sperm penetration
which contraception works by causing endometrial changes
-copper coil
-hormone coil
-implant
-depot injection
-POP (mini pill)
-combined hormonal contraception
which contraception works by ovulation suppression
-combined hormonal contraception
-depot injection
-implant
-lactational amenorrhoea method
-modern POP
which contraception causes thickened cervical mucous
-hormonal coil
-depot
-POP
-implant
which contraception causes direct toxic effects
-copper coil
-spermicides
when can copper coil be used for emergency contraception
up to 5 days after sex or 5 days after the earliest estimated day of ovulation
when can you start taking the combined pill
-first 5 days of period
OR
-at any time in cycle when reasonable sure not pregnant, plus condoms 7 days
what factors may affect effectiveness of combined pill
-impaired absorption (GI conditions)
-increased metabolism (liver enzyme induction or drug interaction)
contraindications for CHC
-migraine with aura
-hypertension
side effects of CHC
increased risk of:
-MI
-DVT
-breast cancer
-cervical cancer
-hypertension
what does the depot do
suppresses FSH
forms of emergency contraception
-levonorgestrel (levonelle)
-ulipristal acetate (ella one)
-intrauterine device
what does levonelle do
-progesterone hormone
-delays ovulation
-72 hours after sex
what does ella one do
-progesterone receptor modulator
-120 hours after sex
-delays ovulation - LH surge
how long after birth do women require contraception
21 days
which contraception causes worst weight gain
depo injection
which contraception can women be given immediately post partum
progesterone only pill
when should oestrogen containing contraceptions be stopped before major surgeries
4 weeks before
how long does a woman have to wait after giving birth to start COCP
6 weeks
