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STI's > Intrauterine contraceptive > Flashcards

Intrauterine contraceptive Flashcards

1
Q

What do intrauterine contraceptive devices include?

A

Copper intrauterine devices (IUDs)
Levonorgestrel-releasing intrauterine systems (IUS)

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2
Q

What is the commercial name for levonorgestrel-releasing intrauterine systems?

A

Mirena

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3
Q

How effective are IUDs and IUS?

A

More than 99% effective

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4
Q

What is the mode of action of IUD’s?

A

Prevention of fertilisation by causing decreased sperm motility and survival (effect of copper ions)

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5
Q

What is the mode of action of IUS?

A

Prevents endometrial proliferation and causes cervical mucous thickening

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6
Q

When can the IUD be relied upon?

A

Immediately following insertion

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7
Q

When can the IUS be relied upon?

A

After 7 days

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8
Q

How long are IUD and IUS effective for?

A

5 years

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9
Q

If an IUS is used as endometrial protection for women taking oestrogen-only hormone replacement therapy, how long is it effective for?

A

4 years

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10
Q

What is the main problem with IUD’s?

A

Heavy, longer, painful periods

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11
Q

What is the initial problem with IUS?

A

Initial frequent uterine bleeding and spotting

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12
Q

What is there an increased risk of with both the IUD and IUS?

A

Ectopic pregnancies
PID
Expulsion

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13
Q

When is the risk of PID increased?

A

In the first 20 days after insertion

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14
Q

How great is the risk of expulsion?

A

There is a risk of around 1 in 20

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15
Q

When is expulsion most likely to occur?

A

In the first 3 months

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16
Q

What are the main contraindications of IUS/IUD?

A

Abnormal uterine anatomy
Unexplained vaginal bleeding
Pelvic inflammatory disease
After 48h and before 28 days PP
IUS- Breast cancer

17
Q

What are the main side effects of IUS?

A

Irregular bleeding
Spotting
Amenorrhoea

18
Q

When can the IUD/IUS be inserted postpartum?

A

Either within 48 hours
Or
28 days postpartum

19
Q

What will the IUD not effect?

A

Will not affect menstrual regularity

20
Q

What will the IUD not effect?

A

Will not affect menstrual regularity

21
Q

How long can the copper coil stay in place for if it fitted after the age of 40?

A

Any copper coil fitted after the age of 40 can stay in place until the menopause

22
Q

How can the IUD be used as emergency contraception?

A

If it is inserted within five days of unprotected sex
or
5 days after last ovulation

STI's (14 decks)

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