Labour

Question 1

how do we know someone is in labour?

Answer 1

painful regular contractions
cervical changes
+/- rupture of membranes

Question 2

how do we check that this is liquor?

Answer 2

pH
ferning on a slide
nitralazine blue test

Question 3

what are we looking for when we assess cervical changes ?

Answer 3

position
dilation
effacement
consistency
head of fetus

Question 4

what are 3 causes of dystocia?

Answer 4

power: inadequate contractions
Passenger: size of baby, position of the baby head
passage: cephalopelvic disproportion

Question 5

what is in the biophysical profile?

Answer 5

tone
movement
breathing
liquour volume

Question 6

what is a normal fetal pH

Answer 6

> 7.25, done by Fetal blood sample (scalp)

Question 7

if fetal blood pH is less than … you need to deliver the baby within 30 mins

Answer 7

7

Question 8

babies drop pH by …. every minute during labour to prep for hypoxia

Answer 8

0.04

Question 9

what is a CTG ?

Answer 9

cardiotocogram
assess fetal heart rate and maternal contractions

Question 10

when analyzing a CTG what are we looking for?

Answer 10

1. baseline rate (want 110-160)
2. beat to beat variability (5-25)
3. access/decels)
4. relationship of decals to contractions

Question 11

what do we do if there are late decels on CTG?

Answer 11

late decels are associated with fetal hypoxia - do fetal blood sampling

Question 12

define fetal bradycardia? what are some causes

Answer 12

fetal HR <100 for > 5 mins
cord prolapse
placental abruption
uterine rupture

Question 13

what is a cause of fetal tachycardia ?

Answer 13

fetal infection