Extra Extra Contraception Stuff Flashcards Preview

Theo's Obs And Gynae > Extra Extra Contraception Stuff > Flashcards

Flashcards in Extra Extra Contraception Stuff Deck (14)
Loading flashcards...
0
Q

How do bleeding patterns vary with an IUD or an IUS?

A

IUD- heavy regular bleeding

IUS - light irregular bleeding, eventual amenorrhea in some cases

1
Q

What are the contraindications to fitting an IUD/IUS?

A
Pregnancy
Undiagnosed bleeding
Cervical/uterine cancer pre treatment
Active PID or in last three months
Current chlamydia, gonorrhoea
Uterine abnormality
Gestational trophoblastic disease
2
Q

What is the risk of expulsion in an IUD/IUS and when is it most common?

A

One in twenty
Most common in first three months after fitting and with heavy menstruation

Expulsion more noticeable with an IUS as hormonal effects wear off and periods start again

3
Q

What is the risk of perforation with an IUD/IUS and when is it most common?

A

One in a thousand

Most common in early post natal period in lactating women

4
Q

What is the failure rate of the IUD as emergency contraception?

A

Less than one in a thousand

5
Q

When can the IUD be used as emergency contraception?

A

Within five days of risk or ovulation

Not after day 19 in a 28 day cycle unless only one risk within five days

If referring on, give oral emergency contraception

6
Q

How long after the risky sexual encounter may ullipristal be used as EC?

A

Up to five days after

Enzyme inducers may reduce efficacy, not recommended for women with severe asthma

7
Q

For how long after the risky sexual encounter may levonorgestrel be used?

A

Up to 72 hours, may be used for up to seven days after but is less effective

Dose is doubled if patient is in enzyme inducers

8
Q

What are the side effects of oral EC?

A

In practice very few have side effects

Nausea and vomiting
Breast tenderness
Disturbance of menstruation
Dizziness, tiredness, headache

9
Q

What does the symptothermal method of contraception rely on?

A

Temperature, which rises after ovulation
Mucus, presence, absence and characteristics
Cervix, position and degree of opening

10
Q

What is the failure rate of the symptothermal method?

A

25%

11
Q

What criteria must be fulfilled for the lactational amenorrhea method? And what is the failure rate?

A

Must be completely amenorthoeic
Fully breast feeding - through the night
Up to six months in western countries

12
Q

What is the failure rate of female sterilisation?

A

One in 200 lifetime risk

Increased rate of ectopics

May be reversible, but depends on the method used

13
Q

What is the failure rate of vasectomy?

A

Lifetime failure rate one in 2000

Reversal is usually possible