Module 5A: Normal Labour and Birth || All Solved.
Onset of of labour includes: correct answers - regular contractions defining sign.
- bloody show.
- ROM.
- positive signs: regular contractions w/ cervical changes.
What are the cervical changes? correct answers - moving from posterior to anterior position.
- effacing (shortening and thinning).
- dilating.
What are is maternal preparation for labour and birth? correct answers - increased estrogen>
activates uterus.
- cervical ripening d/t increased oxytocin and prostaglandin levels.
- increased inflammation.
- increased beta- endorphins (endogenous analgesia).
- increase in mammary & central oxytocin and prolactin receptors> promote breastfeeding and
attachment.
What are is fetal preparation for labour and birth? correct answers - pre- labour maturing of lungs
and organs.
- pre- labour development of oxytocin neuroprotective process.
- pre- labour increase in epi & norepi receptors> protection from hypoxia.
- in- labour preservation of blood supply to heart and brain via catecholamine surge.
- in- labour catecholamine- mediated preparations> promote newborn breathing, energy, glucose
production and heat regulation.
What are the hormones of labour? correct answers 1. oxytocin
,2. beta- endorphins
3. catecholamines (epi, norepi, dopamine)
4. Cortisol
5. Estrogen
Oxytocin correct answers - produced by posterior pituitary gland.
Fxns:
- ripens cervix.
- released in pulses causing rhythmic contractions.
- promotes uterine contractions post birth.
- assist with milk ejaculation.
- "love hormone"; promotes calm.
- promotes bonding/attachment.
Beta- Endorphins correct answers - secreted by posterior pituitary gland.
- released in pain of stress.
- naturally occurring opiate> decreases pain.
Catecholamines correct answers - released in response to fear, stress and danger.
- support newborn transition.
- increased neonatal BP after birth.
- initiates thermoregulation.
Corisol correct answers - late pregnancy surge prepares fetus for birth.
- promotes fetal lung maturation and clearance of lung fluid.
- promotes contractions and increases central oxytocin effects on attachment and adaptation.
, - enhances postpartum mood.
Estrogen correct answers - promotes growth of uterus and breasts.
- increases blood flow to uterus.
- smooth muscle relaxation.
- activates and regulates other hormones in pregnancy.
True Labour correct answers - regular contractions,> become stronger, longer and more frequent.
- contractions more intense w/ walking.
- contractions felt in lower back and low abdo.
- contractions continue despite rest and comfort measures.
- cervix softens, effaces and dilates.
- presenting part of fetus engaged in pelvis.
- may/may not see a bloody show.
False labour correct answers - contractions irregular.
- contractions stop w/ activity or with rest.
- contractions felt in low back or abdo above umbilicus.
- contractions slow/stop w/ comfort measures.
- cervix does not change.
- fetus not yet engaged.
What is labour? correct answers - process by which fetus, placenta and membranes are expelled
from the uterus through the birth canal.
What are the five P's of labour? correct answers 1. Passenger
2. Passage
Onset of of labour includes: correct answers - regular contractions defining sign.
- bloody show.
- ROM.
- positive signs: regular contractions w/ cervical changes.
What are the cervical changes? correct answers - moving from posterior to anterior position.
- effacing (shortening and thinning).
- dilating.
What are is maternal preparation for labour and birth? correct answers - increased estrogen>
activates uterus.
- cervical ripening d/t increased oxytocin and prostaglandin levels.
- increased inflammation.
- increased beta- endorphins (endogenous analgesia).
- increase in mammary & central oxytocin and prolactin receptors> promote breastfeeding and
attachment.
What are is fetal preparation for labour and birth? correct answers - pre- labour maturing of lungs
and organs.
- pre- labour development of oxytocin neuroprotective process.
- pre- labour increase in epi & norepi receptors> protection from hypoxia.
- in- labour preservation of blood supply to heart and brain via catecholamine surge.
- in- labour catecholamine- mediated preparations> promote newborn breathing, energy, glucose
production and heat regulation.
What are the hormones of labour? correct answers 1. oxytocin
,2. beta- endorphins
3. catecholamines (epi, norepi, dopamine)
4. Cortisol
5. Estrogen
Oxytocin correct answers - produced by posterior pituitary gland.
Fxns:
- ripens cervix.
- released in pulses causing rhythmic contractions.
- promotes uterine contractions post birth.
- assist with milk ejaculation.
- "love hormone"; promotes calm.
- promotes bonding/attachment.
Beta- Endorphins correct answers - secreted by posterior pituitary gland.
- released in pain of stress.
- naturally occurring opiate> decreases pain.
Catecholamines correct answers - released in response to fear, stress and danger.
- support newborn transition.
- increased neonatal BP after birth.
- initiates thermoregulation.
Corisol correct answers - late pregnancy surge prepares fetus for birth.
- promotes fetal lung maturation and clearance of lung fluid.
- promotes contractions and increases central oxytocin effects on attachment and adaptation.
, - enhances postpartum mood.
Estrogen correct answers - promotes growth of uterus and breasts.
- increases blood flow to uterus.
- smooth muscle relaxation.
- activates and regulates other hormones in pregnancy.
True Labour correct answers - regular contractions,> become stronger, longer and more frequent.
- contractions more intense w/ walking.
- contractions felt in lower back and low abdo.
- contractions continue despite rest and comfort measures.
- cervix softens, effaces and dilates.
- presenting part of fetus engaged in pelvis.
- may/may not see a bloody show.
False labour correct answers - contractions irregular.
- contractions stop w/ activity or with rest.
- contractions felt in low back or abdo above umbilicus.
- contractions slow/stop w/ comfort measures.
- cervix does not change.
- fetus not yet engaged.
What is labour? correct answers - process by which fetus, placenta and membranes are expelled
from the uterus through the birth canal.
What are the five P's of labour? correct answers 1. Passenger
2. Passage
