Intrapartal Lesson 1 & 2 Flashcards
the culmination of the childbearing cycle and it is the
intense period during which the product of conception is expelled from the uterus.
Labor and Delivery
the process by which the product of conception (viable fetus, placenta, fetal membrane) are expelled from the uterus via the vagina into the external environment. DELIVERY is the expulsion of the product of conception.
Labor
expulsion of the product of conception.
Delivery
what are the synonyms of labor and delivery?
Parturition,
Accouchment,
Travail,
Confinement.
the woman in labor
Parturients
normal labor
Eutocia
difficult labor
Dystocia
greek word; meaning woman’s servant
Doula
What are the Theories of Labor?
Uterine Stretch Theory
Oxytocin Theory
Progesterone Deprivation Theory
Prostaglandin (Estrogenic, Fetal hormone theory)
Theory of Aging Placenta
The uterine muscle stretches from the increasing size of the fetus, which results in release of…
Prostaglandins
as pregnancy near terms oxytocin production by PPG increases whole the production of _____________ ( a hormone that counteract effect of oxytocin.
Oxytocinase
labor considered a stressful event stimulates hypothalamus to produce oxytocin from posterior pituitary gland, oxytocin causes contraction of smooth muscle of the body
o The fetus presses on the cervix, which stimulates the release of OXYTOCIN from the posterior pituitary.
Oxytocin Theory
➢ progesterone is the hormone being designed to promote pregnancy believed to inhibit uterine motility since the amount is decreased, uterine contraction occurs
➢ when progesterone, the hormone that relaxes uterine musculature, decreases in level, with corresponding increase in estrogen, uterine muscle is stimulate thus labor starts
Progesterone Deprivation Theory
When pregnancy reaches term, the fetal membrane produces large amount of _________________ which is converted by maternal deciduas into prostaglandin, that initiates uterine contractions.
Arachidonic Acid
➢ due to the decreased blood supply to the placenta the uterus contracts
➢ as placenta mature more and more pressure is exerted at the placental site which is the fundal portion, upper 1/3 resulting to decreased blood supply to the fundus which also happen to the contractile portion of the uterus, thus
causing contraction
o The placenta reaches a set age, which triggers contractions.
Theory of Aging Placenta
Preliminary/Prodromal Signs of Labor
Lightening
Increased Braxton Hick’s Contraction
Loss of Weight
Increased Maternal Energy or Activity Level
Ripening of the Cervix
Rupture of the Membrane or Bag of Water
Show
thebabydropped“-setting/descentofthefetalheadintothe
pelvic brim/true labor
- secures approximately 10-14 days
Lightening
When does lightening for primis occurs?
occurs 2 weeks before the onset of labor because of tight abdominal muscles
When does lightening for Multis occur?
on or before labor onset
it is not exactly the same as lightening, the descent of the biparietal plane of the fetal head to a level below that of the pelvic inlet
- the descent of the biparietal plane of the fetal head to the level below that of the pelvic inlet
widest part of the fetus – the biparietal diameter in a cephalic presentation, the intertrochanteric diameter in breech presentation
Engagement
the decent of the fetal head to the inlet to a level below that of the pelvic inlet.
Fixation
when the head is still movable above the pelvic inlet on palpation.
Floating
when does increased braxton hick’s contraction occurs?
3-4 weeks before labor
normal loss of weight one to two weeks before labor
2-3lbs
