contraception - methods Flashcards
mechanism COCP prevents pregnancy
inhibits ovulation
when should you start taking COCP
if started within 1st 5 days of cycle no additional contraception needed // if started any later use condoms for 7 days
how should you take COCP
same time every day // no need for withdrawal bleed (take continuously, take 3 packs then a break)
which medications may reduced efficiency of the COCP
liver enzyme inducing eg rifampicin
advantages of COCP (esp cancer)
lighter periods // reduced ovarian, endometrial and colorectal cancer!!!
increased risks with COCP
VTE // breast and cervical cancer // stroke and IHD (esp smokers)
SE COCP
headache, nausea, breast tenderness
what to do with 1 missed pill COCP
take pill at any time you remember, even if that means taking 2 in a day
advice if 2 COCP pills are missed in week 1 of cycle
consider emergency contraception
advice if 2 COCP pills are missed in week 2 of cycle
if she has taken pill for 7 consecutive days there is no need for emergency contraception
advice if 2 COCP pills are missed in week 3 of cycle
finish pills in her back and start new pack (miss pill free interval)
UKMEC 3 COCP
35 + smoke <15 // BMI >35 // FH VTE <45 // hypertension // immobile eg wheel chair // BRCA // gallbladder disease
UKMEC 4 COCP
35+ smoke >15 // migraine with aura // PMH VTE (or mutation) // stroke or IHD // breastfeeding <6weeks // uncontrolled hypertension // breast cancer // surgery + immobile // antiphospholipid antibodies eg SLE or APS // diabetes >20 years ago
UKMEC 4 COCP
35+ smoke >15 // migraine with aura // PMH VTE (or mutation) // stroke or IHD // breastfeeding <6weeks // uncontrolled hypertension // breast cancer // surgery + immobile // antiphospholipid antibodies eg SLE or APS
how should the combined patch be used
wear a patch for 3 weeks (change each week), 4th week no patch
advice if there is a delay in changing combined patch for in week 1 or 2
if <48 hours change immediately // if >48 hours then change immediately and use condoms for 7 days (or emergency contraception is needed)
advice if there is a delay in changing combined patch for in week 3
remove ASAP and apply patch on usual start day for next cycle (ie have withdrawal bleed, no need for condoms)
advice if there is a delay in applying new combined patch at end of week 4 (patch free week)
condoms for 7 days
mechanism POP (not desogesterol)
thickens cervical mucus
mechanism POP desogesterol
inhibits ovulation (and thickens mucous)