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
