Contraception 1 Flashcards

1
Q

what is the most commonly used contraception worldwide?

A

withdrawal

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2
Q

what happens to the pituitary when the uterine wall sheds?

A

anterior pituitary secretes LH/FSH

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3
Q

a peak in oestradiol causes…

A

a peak in FSH and LH

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4
Q

a surge in LH indicates…

A

the follicle is mature, ovulation begins

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5
Q

at what stage of the menstrual cycle does basal body temperature increase?

A

ovulation

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6
Q

how can you physiologically prevent pregnancy?

A

stop ovary from releasing an egg
inhibit transport of ovum
thicken cervical mucus
block sperm from entering

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7
Q

what hormone can inhibit transport of the ovum down the fallopian tube?

A

progesterone

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8
Q

how long do sperm survive in the female genital tract

A

5 days

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9
Q

how long can the ovum survive in the female genital tract?

A

17-24 hours

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10
Q

what is cervical mucous like after ovulation?

A

thick and sticky after ovulation

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11
Q

breast feeding works as a contraceptive T or F

A

T

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12
Q

when should basal body temp be taken?

A

before rising in the morning

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13
Q

how long does cervical mucous stay thick after ovulation?

A

3 days

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14
Q

describe the cervix when fertile

A

high in vagina
soft
open

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15
Q

how much is the increase in basal body temp?

A

0.2 degrees celsius

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16
Q

you are at your most fertile at what days of the menstrual cycle

A

days 8 to 18

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17
Q

describe the cervix when less fertile

A

low in vagina
firm
closed

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18
Q

name the 3 criteria for diagnosis of lactational amenorrhoea?

A

exclusively breast feeding
less than 6 months post natal
amenorrhoeic

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19
Q

main MoA of hormonal contraception?

A

inhibits ovulation

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20
Q

main MoA of new progesterone pills?

A

inhibit ovulation

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21
Q

main MoA of older progesterone pills

A

thicken cervical mucus

thin endometrium

22
Q

main MoA of the implant?

A

inhibit ovulation

23
Q

injection is progesterone only T or F

A

T

24
Q

when is the injection given?

A

every 13 weeks

25
Q

main MoA of IUS?

A

changes endometrium so it’s ineffective for implantation

26
Q

main MoA of injection?

A

inhibits ovulation

27
Q

does the IUD or IUS affect fertilisation?

A

IUD (inflammatory response in endometrium)

28
Q

what should be made sure before sterilisation?

A

the female is not pregnant (needs to be given contraception before)

29
Q

what kind of contraceptive is contraindicated in someone with migraine with aura?

A

COC

30
Q

when should patients on contraception be reviewed?

A

annually

31
Q

what examination is done before an IUD is inserted?

A

uterine size and position is checked

32
Q

a negative pregnancy test and > _ weeks since unprotected sex means its reasonably certain theyre not pregnant

A

3

33
Q

you’re relatively infertile up to _ weeks post partum

A

4

34
Q

you are unlikely to be pregnant if you have unprotected sex up to _ days after your last period

A

7

35
Q

what is quick starting contraception?

A

starting contraception when patient presents

36
Q

what can be used as quick acting contraception?

A

CHC
POP
implant

37
Q

when is emergency contraception needed?

A

if more than 1 COC is missed
if patch/ring has been off for more than 48 hours
if implant fitted outwith first 5 days of cycle

38
Q

how many days after ovulation will a period begin?

A

14 days usually

39
Q

when should emergency contraception be used?

A

up to 5 days after UPSI

within 5 days of predicted ovulation

40
Q

LNG EC can be taken up to _ days after UPSI

A

3

41
Q

UPA EC can be taken up to _ days after UPSI

A

5 days

42
Q

copper IUD can be used as EC up to _ days after UPSI?

A

5 days

43
Q

how many days after fertilisation does an egg implant in the endometrium?

A

8-10 days

44
Q

what type of EC pill is an anti-progestogen?

A

UPA

45
Q

which EC pill is effective before LH surge?

A

LNG

46
Q

when in the menstrual cycle is oral EC most effective?

A

before LH surge

47
Q

when is oral EC least effective?

A

after ovulation

48
Q

when should UPA EC be avoided?

A

if hormonal contraception has been used in the past 7 days;

if patient has acute severe asthma

49
Q

how to work out ovulation time?

A

take 14 days off their cycle

50
Q

what should you find out about the UPSI in an EC history?

A

date and time
previous episodes
previous EC?