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ObGyn > Contraception > Flashcards

Contraception Flashcards

1
Q

Contraception definition

A

Deliberate use of techniques that prevent pregnancy as aftermath of sexual intercourse

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2
Q

Natural family planning methods x6 and their efficacy rate

A

Withdrawal- 74%
Condoms- 82%M, 79%F
Spermicides- 76%
Fertility awareness- 76%
Lactation amenorrhea- 98%
Diaphragm- 88%

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3
Q

Surgical methods of FPx3 and failure rates

A

Hysterectomy
Vasectomy - 0.15%
Bilateral tube ligation- 0.5%

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4
Q

Long acting methods of FP x3 and failure rates

A

Copper IUD- 0.8%
Levonorgestrel IUCD- 0.2%
Implant- 0.05%

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5
Q

Hormonal methods of FP x5

A

Pills
Patch
Vaginal ring
Implants
Injectable- Depo 3M
Levonorgestrel IUCD

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6
Q

Contraception methods to breastfeeding women and their timing x4

A

Lactational amenorrhea till 6M
Progesterone releasing vaginal ring from 4weeks+
Progesterone only infection from 6 weeks+
Combined oral contraceptives from 6M+

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7
Q

True or false. Progesterone only injections are only given 6weeks postpartum for breastfeeding women

A

True

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8
Q

5 types of contraceptive methods

A

Barrier
Hormonal
Permanent
Natural
Intrauterine devices

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9
Q

3 functions of hormonal methods

A

Prevent ovulation
Thicken cervical mucus
Cause thinning of endometrial wall to prevent implantation

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10
Q

Mechanism of action of progesterone drugs x3

A

Suppress LF and estrogen and prevents ovulation
Causes thinning of the endometrial wall
Thickening of cervical mucus

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11
Q

What class is microgynon, what does it contain x2
What’s the failure rate

A

Combined oral contraceptive
Contains 150mcg levonorgestrel and 30mcg ethinyl estradiol
Failure rate 9%

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12
Q

CNS side effects of COC x4

A

Headache
Moodiness
Mood swings
Decreased libido

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13
Q

3 other drug classes that reduce availability of COCS

A

Liver inducers
Protease inhibitors
Anticonvulsants

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14
Q

Contraindication of oral contraceptives x5

A

History of CVA
Thromboembolism
Liver disease/cancer
Breast cancer
Anticonvulsant therapy

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15
Q

Contents of progesterone only pillx2

A

350mcg norethindrone and 75mcg norgestrel

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16
Q

Contents of emergency contraceptives pills and how its taken

A

Levonorgestrel 0.75mg taken stat and after 12 hours

17
Q

Contents of injectables and failure rate

A

Depot medroxyprogesterone acetate 150mg
Failure rate 6%

18
Q

Contraindications of injectables x5

A

Breastfeeding infant <6wks
Breast cancer
Liver disease
Diabetes, BP >160/100
Hx of heart disease or stroke

19
Q

What do implants release and at what rates x2

A

70mcg etonorgestrel per 42 hours in the first year and later on becomes 30mcg/dL

20
Q

Mechanism of action of the implant x4

A

Suppression of LH surge
Suppression of ovulation
Development of thick cervical mucus
Prevention of endometrial growth

21
Q

Side effects of implant x5

A

Headache
Acne
Breast tenderness
Moodiness
Weight changes

22
Q

What does the contraceptive patch release x2

A

Estrogen and progestin

23
Q

What does contraceptive vaginal ring release x2

A

Etonorgestrel
Ethinyl estradiol

24
Q

Mechanism of action of copper IUCD x2

A

Toxic to egg and sperm
Causes local inflammatory reaction making fertilization and implantation difficult

25
Q

Mechanism of action of levonorgestrel IUCD x2

A

Thickened cervical mucus alters sperm migration
Endometrial suppression

26
Q

What does levonorgestrel IUCD release, at what rate and for how long

A

20mcg levonorgestrel per day for 5 years

27
Q

Contraindications for IUCD x4

A

Pregnancy
Abnormal uterine anatomy
Uterine or cervical infection
Uterine or cervical malignancy

28
Q

Mechanism of action of lactation amenorrhea x2

A

Reduce LH release- inhibits follicular maturation
Elevated prolactin and reduced GnRH - suppress ovulation

29
Q

Surgical methods of tubal ligation x2

A

Mini laparotomy
Laparoscopy

30
Q

5 types of BTL

A

Irving
Pomerol
Madlener
Parkland
Kroener fimbriectomy

ObGyn (34 decks)

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