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GP > Contraception > Flashcards

Contraception Flashcards

1
Q

Give the mode of action for COCP

A

Inhibits ovulation

opposes oestrogen effects of endometrial proliferation

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2
Q

Give the mode of action for POP (excluding desogestrel)

A

thickens cervical mucus

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3
Q

Give the mode of action for desogestrel only POP

A

Primary: inhibits ovulation

Also thickens cervical mucus

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4
Q

Give the mode of action for Depot, what hormone does it have

A

Primary: inhibits ovulation
Also: thickens cervical mucus
Medroxyprogesterone acetate

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5
Q

Give the mode of action for IUD

A

decreases sperm motility and survival

inhibits implantation

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6
Q

Give the mode of action for IUS

what is it also know as

A

Primary: prevents endometrial proliferation
also: thickens cervical mucus

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7
Q

How does levonorgestrel work

A

inhibits ovulation

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8
Q

how does ulipristal work, what contraceptive is it?

A

Ella one - morning after pill

Inhibits ovulation

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9
Q

What is the age of consent?

A

16

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10
Q

Give the Fraser guidelines?

A
  • understands advice
  • cannot be persuaded to tell parents
  • likely to continue having unprotected sex
  • physical, MH likely to suffer from no rx
  • their best interests
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11
Q

What are long acting reversible contraceptives?

A

implant
injection
IUS - levonorgestrel
IUD

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12
Q

What are short acting reversible contraceptives?

A

COCP
POP
Combined transdermal patch
Combined contraceptive vaginal ring

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13
Q

What is the failure rate of POP

A

0.3%

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14
Q

What is the failure rate of Depo

A

0.2%

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15
Q

What is the failure rate of the implant

A

0.05%

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16
Q

What are adverse effects of progesterone only contraceptives?

A

Menstrual irregularities
Breast tenderness
Ovarian cysts
increased risk of breast cancer

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17
Q

What is the failure rate of COCP

A

0.3%

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18
Q

What are barrier methods of contraception

A

Male and female condoms.
Diaphragms and caps.
Spermicides.

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19
Q

Why are condoms w pre-lubricated spermicide not recommended?

A

increase transmission of blood-borne infections such as HIV, hep b/c

20
Q

What are advantages of male condoms

A

Protect against STIs and cervical cancer

21
Q

What are disadvantages of male condoms

A

less effective
can break and slip off
interrupts sex
loss of sensitivity

22
Q

What are advantages and disadvantages of female condoms?

A 
Adv:
reduce risk of some STIs + CC
disadvantages:
can be dislodged or penis inserted in wrong bit 
noisy
23
Q

What is failure rate w typical use of male condom?

A

18%

24
Q

What is failure rate w perfect use of male condom?

A

2%

25
Q

What is a disadvantage of diaphragms?

A

may not reduce risk of STIs

26
Q

How should a woman be started on COCP?

A

day 1 of the menstrual cycle

27
Q

What are advantages of COCP

A

Lighter, regular less painful periods,

reduced risk of ovarian, endometrial cancer

28
Q

What does the implant contain?

A

etonogestrel

29
Q

What is failure rate of IUS

A

0.2%

30
Q

What is failure rate of IUD?

A

0.8%

31
Q

If a woman has IUS and PID, what is management

A

don’t need to remove IUS, can test for organism and start abx treatment

32
Q

How long can IUS stay in?

A

3-5 years

33
Q

What is a disadvantage of IUS?

A

acne headaches and unscheduled bleeding in the first 3-6months of using it

34
Q

When does lactational amenorrhoea method work?

A

<6m post-partum
if fully breastfeeding
has to be amenorrhoeic

35
Q

Which contraceptive has evidence for weight gain?

A

the injection

36
Q

Which contraceptive causes a delay in returning to fertility after stopping?

A

injection

37
Q

Which contraception requires monitoring of BMD and when

A

Depot when under <18yr due to association with reduction in BMD

38
Q

What are options for emergency contraception?

A

Progesterone pill - Ellaone or Levonelle

IUD

39
Q

When can IUD be used as emergency contraception?

A

within first 5 days

40
Q

What does Ellaone contain?What is the window for which it can be used as emergency contraception?

A

ulipristal acetate

120hr

41
Q

What does Levonelle contain? What is the window for which it can be used as emergency contraception?

A

levonorgestrel

72 hrs

42
Q

What are permanent methods of contraception?

A

Vasectomy

Tubal occlusion

43
Q

Which permanent method can be reversed? what are success rates?

A

vasectomy AND occlusion!
40-97% for vasectomy
31-92 for occlusion

44
Q

when are vasectomys confirmed as effective?

A

12 weeks to confirm azoospermia

45
Q

What does tubal occlusion increase the risk of ?

A

ectopic pregnancies

46
Q

What is lifetime failure rate of occulsion

A

1 in 200

GP (10 decks)

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