Pregnancy/Reproduction Flashcards
How do you calculate EDD?
LMP + 1 Year - 3 Months + 7 days
G: Gravida
total number of pregnancies (including current one)
P: Para
number of pregnancies that have lasted past 20 weeks
T: Term Births
number of pregnancies that have ended at or after 37 weeks
P: Preterm Births
number of pregnancies that have ended at or after 20 weeks, but before 37 weeks (20-36 weeks)
A: Abortions
number of pregnancies ending before 20 weeks
L: Living Children
number of children currently living
Chadwick’s Sign
bluish/purple discoloration of the cervix (think C for color)
Goodell’s Sign
softening of the cervix (think GOOey)
Hedger’s Signs
softening of the lower uterine segment
How many extra calories are needed during the 1st trimester?
none
How many extra calories are needed during the 2nd trimester?
340
How many extra calories are needed during the 3rd trimester?
450
Why is the first ultrasound done?
to confirm pregnancy
When and why is the second ultrasound done?
18-20 weeks
looks for congenital malformations, excludes multiples, confirms dates, and identifies gender (if wanted)
When and why is the third ultrasound done?
34 weeks
determines fetal weight, height, growth, and verifies placental position
What can ultrasound detect?
Fetal heartbeat, movement, and breathing
What does increased circulating maternal serum alpha-fetoprotein indicate?
failure of neural tubes to close
What does decreased circulating maternal serum alpha-fetoprotein indicate?
down’s syndrome hydatidiform mole, excessive maternal weight, maternal diabetes I, or trisomy 18
What is amniocentesis?
transabdominal puncture of the amniotic sac with a fluid sample retraction
What does an amniocentesis do at 11-14 weeks?
detects genetic abnormalities
What does an amniocentesis do at 15-20 weeks?
detect chromosomal abnormalities, evaluates fetal condition when mother is sensitive to Rh+ blood, diagnoses intrauterine infection, and investigates amniotic fluid AFP levels
What does an amniocentesis do at 35+ weeks?
determines fetal lung maturity and Rh isoimmunization
What are risks associated with amniocentesis?
spontaneous miscarriage and fluid leak
Chorionic Villus Sampling (CVS)
needle aspiration of chronic villus
What does Chorionic Villus Sampling (CVS) detect?
- chromosomal disorders
- enzyme deficiencies
- fetal gender
- sex-linked disorders
What is another name for Cordocentesis?
Percutaneous Umbilical Blood Sampling
How is Cordocentesis done?
aspiration of fetal blood from the umbilical cord near the placenta
Why is Cordocentesis done?
- needed for karyotyping
- diagnosis and intrauterine management of Rh disease
- diagnosis of disorders that require fetal blood for testing
Behavioral Methods of Contraception
- abstinence
- fertility awareness
- withdrawal
- lactation amenorrhea
In Fertility Awareness, when it is unsafe to have sex?
three days before, during, and after ovulation
What is the success rate of fertility awareness?
75%
Cervical Mucus Ovulation Method
looks for spinnbarkeit mucous that is slippery and stretchy
When using the Cervical Mucus Ovulation method, when is it safe to have sex?
before the spinnbarkeit mucous appears and two days after its gone
When using the Basal Body Temperature methods, when should you take your temperature?
at the same time every day, usually when you first wake up in the morning
How much does ovulation change body temperature?
increase of ~0.5-1.0 degrees F that lasts until the next menstruation
What is the Symptothermal Method?
a combination of basal body temperature, cervix firmness and position, increased libido, mittelschmertz, pelvic fullness or tenderness, and breast tenderness
What is the cervix like during ovulation?
firm and high in the vagina or posterior; OS is slightly open