OB Flashcards
What is a normal term?
37 - 41
What is post term?
42 weeks +
Pre term is how many weeks?
20 - 37 weeks
Abortion is how many weeks?
0 - 19 weeks
What is the first biomarker of pregnancy?
Elevated HCG level
How many chromosomes does each parent give to the infant?
23 chromosomes together it equals 46
Does mom or dad dictate the sex of the fetus?
The dad dictates the sex of the fetus
What are the two methods of cell division?
Mitosis and Meiosis are used for cell division
Where does fertilization occur?
Outer 3rd of the fallopian tube
What are the stages of development of fetus?
2 weeks - zygote
2 - 8 weeks - embryo
9 - birth - fetus
How long can sperm last in the cervix?
Up to 5 days
Where is the proffered spot of attachment in the uterus?
The body of the uterus
Where is gas exchange done for the fetus?
In the placenta
When are the lungs functional in the fetus?
The lungs are not functional until the fetus comes out
When does a placenta grow?
At 7 - 12 weeks, when the placenta is grown THEN it does gas exchange
What are the layers of the amniotic sac?
- Amnion
- chorion
How many ml of fluid is in the placenta?
1000 ML
If you have less than <500 amniotic fluid what is it called?
Oligohydramius
More than 1,000 ML amniotic fluid is called?
Polyhydrominous
How many vessels come from the umbilical cord?
3, 2 arteries and 1 vein
Where is blood shunted in fetal circulation?
Away from the liver
What organ in not neccessary in the fetus?
The lungs
What are the three germ layers?
Ectoderm
Mesoderm
Endoderm
What is the age of viability? (age at which fetus can survive outside the uterus)
20 - 24 weeks a baby can be born, but it would require NICU
When do the lungs in the fetus mature?
The lungs of the fetus develop at 34 weeks
What hormones does the placenta produce?
HCG, estrogen, HPL, progesterone
How many pounds does someone usually gain during pregnancy?
25 - 35 pounds
Two immunizations that you can get during pregnancy are what?
Tdap and FLU
Who can’t MMR vaccine list 4
No pregnant
Nuetropenic
Immunocomprimes
Recent transpelent
People who received IGG within 9 months
What does folic acid prevent? How much do we give?
Neural tube defects, and we give 0.4 mg
How to calculate EDD (estimated delivery date)
Naegle’s rule is used to calculate it,
1. First day of last period
2. - 3 months
3. + 7 days
4. + 1 year
What is the preferable pelvis for delivery?
Gyncoid pelvis
What are the fundal heights?
12 weeks symphisis pubis
16 weeks - midway
20 umbilicus
36 weeks - Xiphoid process
what is Leopold’s maneuver used for?
Measures the fetus lay and presentation
What is the normal fetal heart rate
110 - 160
If the patient has naseau or vomiting what do we give them?
Give dry carbohydrates such as crackers
There are three signs of pregnancy, what are they?
- Presumptive, subjective data
- Probable, Objective data
- Positive
ONLY positive will confirm pregnancy, fetal heart rate, ultrasound too
What is the first time we have fetal heart rate
10 - 12 weeks
When is the first fetal movement?
16 - 20 weeks
Should you ever put a pregnant women to lay down flat on her back?
NO, it causes supine hypotension
What are the 4 changes of pregnancy on the cardiovascular system?
- Diluional anemia
- Increases risk of clots
- Blood pressure lowers
- Blood volume increases by 45%
What are the calories needed more than usual while pregnant?
300 more calories than normal
What are things to remind someone pregnant who are traveling
list 4
- Walk around
- Stay hydrated
- After 28 weeks avoid air travel
- Wear loose comfortable clothing
