Peds & OB Review Flashcards
Where is estrogen produced during pregnancy what is it responsible for?
Ovaries & placenta produce causes enlargement of uterus, breasts and genitals
What is progesterone during pregnancy responsible for?
Maintains endometrium for implantation
Inhibits uterine contractions- prevents abortion
Promotes secretory ducts of breasts for lactation
Thyroxine (T4) elevates during pregnancy, what does it produce?
Increased BMR by 23%, elevated HR
What hormone stimulates progesterone and estrogen by the corpus luteinizing to maintain pregnancy until uterus takes over?
HCG (human chorionic gonadotropin)
This hormone is responsible to increase in glucose and protein metabolism and is produced by the placenta?
Human placental lactogen (hPL)
This hormone produced by the anterior pituitary is responsible for the darkening of skin found in pregnancy?
Melanocyte stimulating hormone (MSH)
Relaxin is produced where and responsible for what?
By the corpus luteum and inhibits uterine activity
What hormone prepares breasts for lactation?
Prolactin
Oxytocin is produced where and responsible for what during pregnancy?
Posterior pituitary
Stimulates uterine contraction
—after birth contractions reduce bleeding
Stimulates mild ejection reflex (let-down)
T/F cortisol is 2-3 times higher during pregnancy and helps to developer fetuses neurological system including mental development and temperament?
True
What are the presumptive signs of pregnancy?
Subjective: Amenorrhea, nausea, breast tenderness, fatigue, increased urination
What are the probably signs of pregnancy?
Objective: softening and darkening of the cervix, uterine softening and enlargement, positive pregnancy test, ballottement.
What are the positive signs of pregnancy?
Diagnostic: Fetal heart sounds, fetal outline and movements
What happens to the alveoli during pregnancy?
They become increasingly distended
What 2 hormones cause the proliferation in duct and grandular tissue that produces an average 12-ounce increase in breast weight?
Estrogen and progesterone
What is uterine soufflé?
Maternal arterial blood flow
What happens to the walls of the uterus during pregnancy?
They thicken from 10-25mm in first 16 weeks, then thin to 5-10 mm by term
What is Hegar’s sign?
Uterine softening, lengthening and bending anteriorly
What is Chadwick’s sign
Bluish, darkening of the vagina, vulva & cervix
What is Goodell’s sign?
Softening of the cervix
What is the average increase in fundus after 20 weeks?
1cm per week
What is the fundal height at 20 weeks?
20cm or at umbilicus
What is the fundal height at 12 weeks?
12cm or just at symphysis pubis
What is the fundal height at 16 weeks?
Halfway between symphysis pubis and umbillicus
What happens to the vaginal pH during pregnancy?
It decreases
T/F it is expected to hear hyperactive bowel sounds during all stages of pregnancy?
False- usually tend to be more hypoactive due to the normal decrease in peristalsis
How much is the cardiac output usually increased in pregnancy?
30-50%
At 30-34 weeks, blood volume increases by how much?
30-50% (1110-1600ml)
What is the normal increase in oxygen consumption during pregnancy?
30%
What hormone very active during pregnancy decreases bladder tone further increasing risk for incontinence?
Progesterone
T/F the pituitary gland increased to 3x it’s normal size during pregnancy?
True
What labs are routinely ordered at during early pregnancy?
H&H, Rh factor, Type & Screen, antibody screen, varicella, and rubella and TSH (if indicated)
urine culture
STI screen for chlamydia & gonorrhea, Hep B & C, syphilis, and trachomatis
Maternal genetic testing
When is rhogam shot given to pregnant Rh negative mom?
28 weeks and within 72 hours of delivery (or abortion)
What are the two most critical elements to prenatal supplementation?
Folate & Iron
When does the extreme fatigue of pregnancy usually peak?
9-12 weeks
What are the common genetic and fetal screening tests often in first trimester?
CF, Sickle cell, autosomal recessive disorders (screen both parents)
Fetal screenings: Down syndrome, aneuploiudies, chromosomal number abnormalities
What is the most common STI?
HPV
T/F removal HPV wart cures infection?
False
What is the most commonly reported STI?
Chlamydia
A major complication of PID is what condition?
Fitz-Hugh-Curtis syndrome