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Antepartum Slides 13-20
Terms in this set (40)
What is the approximate length of pregnancy?
Approximately 40 weeks of gestation or 280 days
How many trimesters is a pregnancy divided into?
What weeks are covered in trimester 1?
What weeks are covered in trimester 2?
What weeks are covered in trimester 3?
What day is considered the first day of trimester 1?
day 1 is the first day of the last menstrual period
What are the abbreviations for Estimated Date of Delivery?
EDB= Estimated date of birth
EDC- Estimated date of confinement
EDD- Estimated date of delivery
What is Naegele's rule?
the standard formula for determining an EDD based on a LMP. The formula is: First day of LMP-3months + 7days.
How is EDD calculated using Nagele's rule?
1. Determine the first day of the LMP
2. Subtract 3 months
3. Add 7 days
4. Add one year
When do most women give birth?
sometime between 7 days before the EDD to 7 days after EDD
What is the purpose of prenatal care?
To identify existing risk factors and other deviations from normal
What is the emphasis of prenatal care?
1. Preventative care
2. Optimal self-care
Which classes of women routinely seek prenatal care?
1. Middle class
2. Upper (High) class
What are the 3 signs of pregnancy?
What are presumptive signs of pregnancy?
Signs of pregnancy reported by the patient. These are subjective signs.
What are probable signs of pregnancy?
objective signs of pregnancy and include all physiological and anatomical changes that can be perceived by the health care provider.
What are positive signs of pregnancy?
These are signs only attributable to the fetus.
Which trimester is the most important?
If the patient's LMP is 7/4/2012; What is her EDD?
If the patient's LMP is 9/30/2012; What is her EDD?
If the patient's LMP is 11/30/2011; What is her EDD?
Why is it important to know how many weeks the patient is?
Because the plan of care is dependent upon the gestational age of the infant.
What is a gestational wheel?
A helpful tool used to calculate due dates, but can be inaccurate dependent on if the wheel has 31 days for the correct months or if it is generic and labels every month with 30 days.
What does prenatal care promote?
Better outcomes for mom and baby.
Which socioeconomic class is at higher risk when pregnant?
Lower because of the lack of prenatal care. There are many programs that help this demographic.
What are specific PREsumptive signs and symptoms of pregnancy?
The patient states....
2. Breast changes (increases in size and tenderness0
3. Weight gain
4. Urinary frequency
What are specific PRObable signs of pregnancy?
The clinician observed....
1. Chadwick's sign
2. Goodell's sign
3. Hegar's sign
4. Uterine growth and abdominal growth
5. Skin hyperpigmentation
7. Positive pregnancy test results
What are specific POSitive signs of pregnancy?
Signs confirming fetus is present....
1. fetal heart rate; 10-12 weeks
2. fetal outline by ultrasound; cardiac movement noted at 4-8 weeks
3. detection of movement by clinician
If a patient has a positive hCG test but no POSitive signs; what can be assumed?
What is Chadwick's sign?
Bluish-purple coloration of the vaginal mucosa, cervix, and vulva seen at 6-8 weeks gestation
What is Goodell's sign?
Softening of the cervix and vagina with increased leukorrheal discharge; palpated at 8 weeks.
What is Hegar's sign?
Softening of the lower uterine segment; palpated at 6 weeks.
What is meant by hyperpigmentation as a probable sign of pregnancy?
Skin hyperpigmentation in pregnancy refers to...
1. Melasma (chloasma) (mask of pregnancy); brownish pigmentation over forehead, temples, cheek, and/or upper lip
2. Linea nigra; dark line that runs from the umbilicus to the pubes
3. Nipples and areola; become darker
What is ballottement?
A light tap of the examining finger on the cervix causes the fetus to rise in the amniotic fluid and then rebound to its original position; occurs at 16-18 weeks
Why is a positive pregnancy test considered a probable sign of pregnancy rather than positive?
The tests are extremely accurate, but not 100%. There can be both false-positive and false-negative results.
When can a urine pregnancy test detect pregnancy?
about 4 weeks after conception
When should a urine pregnancy test be done?
First morning urine specimen is best because it has the highest concentration of hCG
Why do most home pregnancy tests come with two testers?
If a negative result occurs, the instructions suggest that the test be repeated in one week if a menstrual period has not begun.
Can a blood test be done to detect pregnancy?
Yes, maternal blood pregnancy tests can detect hCG levels before a missed period.
What does Naegele's rule rely on for accuracy?
1. Regular menstrual cycles
2. 28-day menstrual cycle with 14 days between onset of menses and ovulation and 14 days between ovulation and onset of the subsequent menses.
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