Labour Evaluation Flashcards
What is labour?
cervical changes accompanied by regular uterine contractions
latent phase - define
under 4 cm dilation and full effacement (thinning)
active phase - define
portion of labour where dilation occurs more rapidly and cervix > 4cm dilation (to 10cm)
protraction of active phase - define
cervical dilation in the active phase of labour that is < 1.2 cm/h for null and 1.5 cm/h for multi
arrest of active phase - define
no progress in active phase of labour for 2 hours
first stage of labour - define
onset of labour to complete dilation of the cervix
second stage of labour - define
dilation to complete delivery of the placenta
normal FHR
110-160 bpm
decels that offset with each contractions are indicative of…
fetal hypoxemia
early decels followed by contractions are problems?
benign
what are the types of decels?
early - mirror image of contractions
variable - sudden jagged
late - offset the contractions
when you have abnormal labour, you need to consider..
3Ps - power, passage and passenger
how many categories of FHR patterns on CTG?
1 - reassuring
2 - watch and wait
3 - ominous - hypoxia or acidosis
fetal scalp pH monitoring - procedure
obtaining a small amount of capillary blood from the fetal scalp to assess fetal hypoxemia
if weak uterine contractions you give?
oxytocin (ergometrine/syntocin)