Obstetrics Flashcards
What stage is the embryo particularly venerable to teratogens
Week 4
Teratogens are substances such as medicines that can affect the growth or development of the baby when exposed to the mother
What is Quickening
Foetal movement (baby kicking) this is prominent in weeks 17-20
What is considered a term birth
37-42 weeks
What are the different trimesters
Weeks 1-13 = trimester 1
Weeks 14-27 = trimester 2
Weeks 28 until birth = trimester 3
What is Gravidity and Parity
Gravidity = Num of times a patient has been pregnant
Parity = num of times patient has given birth to foetus 24 weeks gestation or more
What is the difference with antenatal and post natal
Antenatal = time from conception until delivery
Postnatal = time from delivery until approximately 6 weeks after birth
How does supine hypotention occur
This happens generally after 25 weeks, when lying flat the uterus compresses the interior vena cava causing a reduction in venous return
What are the cardio vascular changes in pregnancy
Respiratory changes in pregnancy
Why is smoking a risk factor
Carbon monoxide reduced the amount of 02
Nicotine - crosses over the placenta and affects the vascularity of the foetus and also affects the neruo capability of the foetus
Vaping and E cigarettes are not safe to use!
Can maternal hypertention be a complication?
Yes!
This can reduce the amount of oxygen available to the baby affecting the growth rate and possibly causing pre term birth
Can pre existing diabetics be a complication
Yes since there is a higher demand for sugar or glucose, insulin might have to be adjusted to avoid foetal hypoglycemia
Why are infections a problem for pregnancy
pathogens can crosses the placenta. As there is no defense mechanism it can have catastrophic consequences for the fetus
What is cervicale insufficiency
This is also known as a incompetent cervix.
This is when the cervix opens early so it is unable to retain the fetus
What is the age break for geriatric birth
35 and over there is more of a risk that there could be pre term birth or neuro deficiencies