Short acting contraception

Question 1

Fat people and CHC

Answer 1

If someone is more than 90kg you shouldn’t use the patch

Question 2

How does CHC work?

Answer 2

• Inhibits ovulation (reduces LH and FSH production)
• Also alters cervical mucous
• renders epithelium unfavourable for implantation

Question 3

How do the pills work?

Answer 3

The first 7 pills inhibit ovulation and the remaining 14 maintain anovulation (then you stop for 7 days and you get a withdrawal bleed)

Question 4

What is tri-cycling?

Answer 4

This is an off-licence regime:

-3 packs are taken back to back and then 7 days off

Question 5

What happens if levels of antithrombin III and protein S decrease?

Answer 5

Increases chances of clotting

Question 6

CHC effects on antithrombin III and protein S?

Answer 6

CHC reduces the levels of these

Question 7

When do you check blood pressure if someone is on CHC?

Answer 7

Check at first at 3 months and then annually

Question 8

CHCs that contain levonorgestrel, norethisterone or norgestimate have the lowest risk of what?

Answer 8

Lowest risk of VTE (out of all CHC etc)