Definitions / terms Flashcards
Brandt
Andrews manoeuvre
Controlled cord traction
jacquemier’s sign
hwen vagina / cervix have bluish /purple colour due to increased blood supply
retraction
maintaining tone between contractions
ef
effacement
cervix becomes continuous with lower uterine segment
dilation
cervix gets pulled opon
(contractions pull on lower segment)
visceral pain
pain due to ischaemia that occurs in muscle fibres during active contraction
somatic pain
stretching of vaginal / perineal /pelvic tissue
caused by pressure of presenting part
second stage
operculum
mucous plug
fontanelle
membrane covered junction between cranial bones
‘true pelvis’ (vs ‘false pelvis’)
almost entirely surrounded by bone
includes inferior region of ilium / ischium / pubis / sacrum
separated from ‘false pelvis’ by pelvic brim
‘true pelvis’ is only part that has potentiall restrictive role in childbirth
engagement
when head has reached level of ischial spines
when widest part of head has passed into pelvic brim (inlet)
acidosis
low pH in fetal blood + tissues
respiratory acidaemia
low ph in blood, due to accumulating CO2
Hypoxia
low oxygen in fetal tissues
Respiratory alkalosis
when blood doesn’t have enough CO2 (caused by hyperventilation)
–>decreased paCO2
- reduced acidity (pH increases)
can reduce oxygen to baby, as may result in reduced blood flow