Pain Relief in labour Flashcards
1
Q
What is Entonox?
A
*50% nitrous oxidem 50% oxygen
2
Q
What is the mode of action of entonox?
A
-Thought to be via release of endorphins and serotonin under action of nitrous oxide and inhibiting pain receptors
3
Q
What is the route of entonox?
A
-inhaled through mouthpiece or mask (non-return valve).
4
Q
What is the effect of entonox?
A
-In 20-30 seconds, maximum effect in 2-3 minutes rapidly metabolised and eliminated by the lungs. There are no adverse effects for a women and baby.
5
Q
What are the three opioids used to manage pain in labour?
A
-Diamorphine, Pethidine and remifentanil
6
Q
What is the mode of action of opioids?
A
-Act on opioid receptors in the brain
7
Q
What is the route of opioids?
A
- Diamorphine and pethidine are IM injections
- Remifentanil is via a PCA IV drip.
