Exam 1 Flashcards
Maternal mortality rate is
Mortality rate in US
Number of deaths related to pregnancy, delivery or postpartum / 100,000 births
19 per 100,000 live births
Factors affecting maternal mortality in US
Low SES, pre-existing conditions, hemorrhage, pregnancy related hypertensive disorders, infections
Ovarian cycle comes in 3 phases which are
Follicular phase (day 1 - 10 to 14)
Ovulation (day 14)
Luteal phase (day 15 - 28)
Follicular phase day 1-14 what happens & what hormones are involved
FSH - stimulates maturation of new follicle
As follicle increases, more estrogen is released
ESTROGEN - shuts down FSH so 1 egg is in play
ESTROGEN encourages production of LH which triggers ovulation
Ovulation phase day 14 what occurs & what hormones play a role
Surge of LH causes mature follicle to be rupture & release an ovum
Levels of estrogen drop & progesterone increases
Luteal phase (day 15-28) & hormones associated
Begins at ovulation & last until menstrual phase of next cycle
Follicle forms the corpus luteum & produces PROGESTERONE
Progesterone maintains thick uterine lining
Corpus luteum produces Estrogen that continues to thicken endometrium
FSH & LH are at lowest level
What happens if the egg is not fertilized
Corpus luteum will stop secreting hormones so the lining will begin to shed & begin menstruation
Since ESTROGEN levels drop, FSH increases & restarts the ovarian cycle
What happens if the egg is fertilized
Body will release hGh so corpus luteum is maintained & endometrium maintains thickness so egg can grow
What is menstruation
Which hormone is high & why
Lining of endometrium is being shed because egg wasn’t fertilized (day 1-5)
FSH is high to stimulate maturation of new follicle & begin ovarian cycle
Amniotic fluid is made up of
What are abnormalities & associated problems
98% water & 2% organic matter
Oligohydramnios (< 500ml, too little) : uteroplacental insufficiency & renal abnormalities
Hydramnios (> 2,000ml, too much) : maternal diabetes, neural tube defects, chromosomal deviations, CNS malformation, GI alterations
Role of amniotic fluid
Cushions the fetus from trauma
Maintains constant body temp for fetus
Promotes fetal movement
Down syndrome is an
Affects which chromosome
Characteristics of downs
Abnormality of chromosome number
Trisomy 21; extra material on chrom.
Small low set ears, wide set eyes, simian crease, open mouth with protruding tongue
Tay sachs disease is an
What does it affect & why
Autosomal recessive inheritance
Affects nervous system of the brain due to fatty substances accumulating
Antibodies that fetus has at end of pregnancy (immunoglobulins)
IgG - only one that crosses the placenta providing passive acquired immunity (most common antibody)
IgM - fetus will produce as first line of defense
IgA - produced in colostrum (breast milk) is given to baby through milk
Roles of the placenta
Placenta serves as an interface between mother and fetus (O2 & nutrients)
Baby gets oxygen from placenta
Makes hormones
Protects fetus from immune attack by mother
Removes waste products from fetus (CO2)
Presumptive signs of pregnancy
Amenorrhea, fatigue, breast tenderness, nausea & vomiting, urinary frequenc, quickening, breast enlargement
Probable signs of pregnancy
Braxton hicks contractions, abdominal uterine enlargement, positive pregnancy test, ballottement, hegars sugn, Chadwick’s sign, goodwills sign
Hegars sign
Chadwick’s sign
Goodells sign
Softening of lower uterine segment or isthmus
Bluish-purple coloration of vaginal mucosa and cervix
Softening of cervix