Drugs in labour + IoL

Question 1

outline the drugs used in labour

Answer 1

• syntocinon
• ergometrine
• syntometrine
• prostaglandins

Question 2

describe syntocinon

Answer 2

• synthetic oxytocin
• given to initiate labour & stimulate contractions during labour
• resembles normal physiological contractions

Question 3

describe ergometrine

Answer 3

• doesn’t resemble normal physiological contractions
• only given in PPH

Question 4

describe syntometrine

Answer 4

combination of syntocinon & ergometrine

Question 5

describe prostaglandins

Answer 5

• vaginal prostaglandin E2 pessaries given to induce labour
• cause uterine muscles to contract & cervix to soften

Question 6

what are the disadvantages to IoL?

Answer 6

• more painful & less efficient than normal labour
• increased risk of hyperstimulating uterus w oxytocin/prostaglandins

Question 7

indications for IoL?

Answer 7

• post maturity - term + 7 days
• macrosomia
• PROM
• PET
• reduced foetal movements

Question 8

what does Bishop’s score indicate?

Answer 8

<8= cervical ripening (opening) required

>8= predicts successful IoL + indicates that labour will most likely commence spontaneously

Question 9

options for IoL?

Answer 9

1. vaginal prostaglandin pessaries
2. membrane sweep
3. artificial ROM + IV Oxytocin

Question 10

how many contractions should you aim for?

Answer 10

4 in 10 mins