Contraception Flashcards
Give advice:
On COCP 2 pills missed in week one day 1-7
Take last pill
EC needed
7day break as usual
Additional protection for 7 days
Give advice:
On COCP 2 pills missed in week two, day 8-14
Take last pill
EC not needed
7day break as usual
Additional protection for 7 days
Give advice:
On COCP 2 pills missed in week three, day 15-21
Take last pill
EC not needed
No 7 day break
Additional protection for 7 days
Give advice:
On COCP 2 pills missed in week four, day 22-28
Pull free week/placebo
EC if more than 7 days pill free plus EC
Give advice:
On Traditional POP missed pill by >3h
Take pill ASAP
EC needed
Additional protection for 2 days
Give advice:
On Desogestrel POP missed pill by >12h
Take pill ASAP
EC needed
Additional protection for 2 days
Give advice
14 weeks and 1 day since DMPA or 10+1 since NET-EN
UPSI within last 3 days
Give injection
Offer EC copper IUD or LNG
Additional protection for 7 days
UPT 21 days later
Give advice
14 weeks and 1 day since DMPA or 10+1 since NET-EN
UPSI within last 4-5 days
Give injection
Offer EC copper IUD
No additional protection if IUD
UPT 21 days later
Give advice
14 weeks and 1 day since DMPA or 10+1 since NET-EN
UPSI more than 5 days ago
Do not give injection
Do not give EC
Additional protection for at least 21 day
UPT 21 days later
How log should the copper IUD be used for if for EC only
Time next menstrual period
How effective is the copper IUD as an EC
99%
What is the mechanism of LNG EC
How effective is it
Inhibit ovulation by inhibiting LH surge
98%
What is the mechanism of UPA EC
How effective is it
Inhibition of ovulation, mechanism unknown
99%
What are the contraindications to the LNG EC
None
What are the contraindications to the UPA EC
Severe asthma
Taking enzyme inducers
Taking ant-acids
When using LNG EC for how long is additional contraception required
COCP 7 days
POP 2 days
Qlaira 9 days
When using UPA for how long is additional contraception required
COCP 14 days
POP 9 days
Qlaira 16 days
With UPA EC when should a repeat dose be considered
Vomiting within 3 hours
With LNG EC when should a repeat dose be considered
Vomiting within 2 hours
To what age can COCP be used till if no other contraindications
50yr
<30ug of ethynyloestradiol should be used
To what age can DMPA be used
50 yr
Re evaluate every 2 yr due to osteoporosis risk
To what age can POP be used till
Until menopause
If >50yr continue for 1yr amenorrhoea
If <50yr continue for 2yr amenorrhoea
How long can the Cu IUD be used for
5-10yr
If fitted >40yr it can be kept until menopause
When should the mirena be changed or removed
After 5 years
If fitted >45yr it can be kept for 7 years or until the menopause
How protective is breast feeding as a contraceptive
If exclusive the risk of pregnancy at 6 months is only 2%
When postpartum should contraception be started if pregnancy is not desired, at the latest
Day 21
When can the COCP be started postpartum
On D21 of not breastfeeding
If more than 21 days, additional contraception for 7 days required
If breast feeding > 6months
Partial = UKMEC 3
Fully = UKMEC 4
When can the POP be started postpartum
Any time
If > 21 days use additional contraception for 2 days
When can the implant be started postpartum
Anytime
Will need 7 days additional contraception if after D21
When can the Injection be started postpartum
If breast feeding >D21
If not breast feeding, anytime
Will need 7 days additional contraception if after D21
Can EC be used postpartum
Not required within 21 days
If using UPA, don’t breastfeed for 36 hours
How long after UPSI can the Cu IUD be used for EC
5 days or 5 days from ovulation if known
Which EC should be offered 1st line
CU IUD due to its low failure rate
How long after UPSI can the UPA be used for EC
120 hours
How long after UPSI can the LNG be used for EC
72 hours is working licence, can consider up to 96 hours
Regarding ongoing contraception following EC, what is not recommended until pregnancy excluded
Progestogen injectables
Can be used if other methods not appropriate or acceptable
In women taking enzyme inducing drugs, what EC can be offered
Cu IUD
LNG 3mg
For how long after taking enzyme inducers are EC effected
28 days
What EC can be used more than once in a cycle
LNG
What is the mechanism of each form of EC
CU IUD toxic to ovum and sperm
LNG inhibit ovulation
UPA inhibit ovulation
With oral EC what is the rate of vomiting after treatment
1%
Nausea 20%
Within what time period after LNG EC would UPSI not require further EC
12 hours
Regarding IUD/IUS postpartum
What condition would result in a UKMEC 4 grading
Postpartum sepsis
Regarding IUD/IUS postpartum
When would insertion be classified as UKMEC grade 1
<48 hours or > 4 weeks
> 48hr <4 weeks is considered UKMEC 3
What contraceptions are UKMEC 1 immediately postpartum regardless of breastfeeding
Implant & POP
Regarding IUD/IUS
At what age does insertion become UKMEC 2 and why
Under 20yrs due to the increased risk of expulsion
What is the failure rate for vasectomy
1:2000
What is the lifetime failure rate for filshie clips
1:200
2-3:1000 10yr failure rate
What is the 5 year failure rate for hysteroscopic sterilisation
1:500
How much copper is used in the most effective IUD
> 380mm2
At what BMI is the failure rate of progesterone implants increased
> 40
How effective is LNG EC at 72 hours after UPSI
85% effective
How effective is UPA EC at 120 hours after UPSI
85% effective
How effective is CuIUD EC at 120 hours after UPSI
99%
When is a vasectomy considered a failure
If motile sperm are identified 7 months post procedure
Regarding vasectomy
When can special clearance be given to cease additional contraception
When <100,000 non-motile sperm are observed in a fresh seamen sample post-vasectomy
What progestogens have the lowest risk of VTE
First generation
Norethisterone
Levonorgestrel
Norgestimate
5-7:10,000
What is the risk of VTE with
First generation progestogens
5-7 : 10,000
What is the risk of VTE with Norethisterone
5-7:10,000
Which generation progestogen is levonorgestrel
First generation
Which generation of progestogens are the following
Desogestrel
Gestodene
Drospirenone
What is the risk of VTE
Third generation
3 Desperate Guests Drop None
Risk of VTE 9-12:10,000
Which generation of progestogens are the following
Norethisterone
Levonorgestrel
Norgestimate
What is the risk of VTE
First generation
First Norene can’t Levitate Nor Gestimate
5-7:10,000
What is the risk of VTE IN the general population
0.1-0.2:1000
What is the risk of VTE IN the pregnant population
1-2:1000