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23 Cards in this Set
- Front
- Back
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Amniotic fluid
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The pale, straw colored fluid in which the fetus floats. It serves as a cushion agaisnt injury from suden blows or movements and helps maintain a constant body temperature for the fetus. The fetus modifies the amniotic fluid through the process of swallowing, urinating and movement through the respiratory tract.
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Ballottement
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Rebounding of the fetus against the examiner's fingers on palpation. When the examiner taps the cervix, the fetus floats upward in the amniotic fluid. The examiner feels a rebound when the fetus falls back.
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Chadwick's Sign
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Bluish coloration of the mucous membrane of the cervix, vagina, and vulva that occurs at about 6 weeks of pregnancy and is a probably sign of pregnancy.
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Delivery
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Actual even of birth; the expulsion or extraction of the neonate.
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embryo
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Stage of fetal development that lasts from day 15 until approx. 8 weeks after conception or until the embryo measures 3 cm from crown to rump.
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Fertilization
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Uniting of the sperm and ovum, which occurs within 12 hours of ovulation and within 2 to 3 days of insemination, the average duration of viability for the ovum and sperm.
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Goodell's Sign.
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Softening of the cervix that occurs at the beginning of the second month of gestation and is a probable sign of pregnancy.
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Gravida
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A pregnant woman; called gravida I (primigravida) during the first pregnancy, gravida II during the second and so on.
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Hegar's sign
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Compressibility and softening of the lower uterine segment that occurs at about week 6 of gestation; a probably sign of pregnancy
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implantation
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attachment of the zygote to the uterine wall 6 to 10 days after conception.
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labor
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coordinated sequence of invountary uterine contractions resulting in effacement and dilation of cervix, followed by expulsion of the products of conception.
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Lcithin (L)-to-Sphingomylin-(S) ratio
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The ratio of two componenets of amniotic fluid, used for predicting fetal lung maturity; the normal L/S ratio in amniotic fluid is 2:! or higher when the fetal lungs are mature.
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Lochia
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Discharge from the uterus that consists of blood from the vessels of the placental site and debris from the decidua; lasts for 2 to 3 weeks after delivery.
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Nagele's Rule
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Determines the estimated date of confinement and works on the premise that the woman has a 28 day menstural cycle. Add 7 days to the first day of the last menstrual period. Subtract 3 months and add 1 year. Alternately add 7 days to the last menstrual period and count forward 9 months.
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neonate
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A human offspring from the time of birth to the twenty-eighth day of life. aka newborn
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Oligohydramnios
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An abnormally small amount or absence of amniotic fluid; associated with fetal renal abnormalities.
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Parity
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The number of pregnancies that have been carried to viability.
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Placenta
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The organ that provides for the exchange of nutrients and waste products between the fetus and the mother, produces hormones to maintain pregnancy, and develops by the third month of gestation; also called afterbirth.
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Quickening
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First perception of fetal movement, appearing usually in the sixteenth to twentieth week of pregnancy.
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Surfactant
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Phospholipd that is necessary to keep the fetal lung alveoli from collapsing; amount is usually sufficient after 32 weeks gestation.
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Uterus
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Located behind the symphysis pubis, between the bladder and the rectum. It is comprised of four parts--fundus (upper part), corpus (body), isthmus (lower segment), and cervix.
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Vagina
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A tubular structure located behind the bladder and in front of the rectum; extends from the cervix to the vaginal opening in the perineum. It functions as the outflow tract for menstrual fluid and for vaginal and cervical secretions, the birth canal, and the organ for coitus.
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Viability
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The capability of the fetus to survive outside the uterus; about 22 to 24 weeks after the last menstrual period, or fetal weight more than 500 g.
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