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The number of weeks since the first day of the last menstrual period. |
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Delivery that occurs prior to the end of 20 weeks' gestation. |
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Normal duration of pregnancy beginning the 38th week to the end of the 41st week. |
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Delivery that occurs after 20 weeks but before the completion of the 37th week of gestation. |
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Delivery that occurs after the beginning of the 42nd week of gestation. |
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Time between conception and the onset of labor or birth; usually used to describe the period during which a woman is pregnant. Used interchangeably with "prenatal". |
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Time from the onset of labor until the delivery of the products of conception - infant and placenta. |
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Time from birth until the woman's body returns to an essentially prepregnancy state; the first six weeks following delivery. |
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Any pregnancy, regardless of duration, including present pregnancy. |
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A woman who has never been pregnant. |
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A woman who has been pregnant more than once. |
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A woman who is pregnant for the first time. This is the most dangerous pregnancy. |
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A fetus born dead after 20 weeks of gestation. No APGAR score. |
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The period of time from the point of viability through the neonatal period. |
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The capacity to live outside the uterus; about 22 menstrual weeks or 20 gestational weeks or a fetus that weighs greater than 500 grams. |
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The first 28 days of life. |
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Subjective signs/presumptive of pregnancy |
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Amenorrhea N/V Urinary frequency Breast tenderness Quickening
All are these kinds of signs |
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Objective signs/probable of pregnancy |
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Definition
Goodell's sign Chadwick's sign Hegar's sign Uterine enlargement Enlargement of abdomen Braxton Hicks contractions Ballottement Positive pregnancy test Palpation for fetal outline
All of these are what kind of signs |
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Between weeks 38 and 40, fundal height drops as the fetus begins to descend and engage in the pelvis. What is this called? |
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This sign occurs around 6 weeks of gestation. It's softening and compressibility of the lower uterine segment. |
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These contractions can be felt soon after the 4th month. They are irregular and painless and occur intermittently throughout pregnancy. Promote oxygen delivery to the fetus. |
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This is a softening of the cervical tip and may be observed around the 6th week in a normal, unscarred cervix. |
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This is passive movement of the unengaged fetus and can be identified generally between 16-18 weeks. |
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Commonly described as a flutter and is difficult to distinguish from peristalsis. Typically occurs between 16-20 weeks. |
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Increased vascularity results in a violet-bluish color of the vaginal mucosa and cervix. This color may appear around 6 weeks. |
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A white or slightly gray mucoid discharge with a faint musty odor. |
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This trimester is 1-13 weeks. BP remains the same. |
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This trimester is 13-26 weeks. There's a decrease in systolic and diastolic (b/w 5-10 mmHg difference). May have fainting spells. |
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This trimester is weeks 27-40. BP returns to the 1st trimester level. Progesterone level drops. |
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1) Passenger 2) Passageway 3) Powers 4) Psyche |
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The 4 P's Affecting Labor |
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This is diamond-shaped and closes around 18 months. |
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This is triangular and closes 6-8 weeks after birth. |
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Refers to the part of the fetus that enters the pelvic inlet first and leads through the birth canal during labor. |
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This is the relation of the long axis (spine) of the fetus to the long axis (spine) of the mother. |
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This is the relation of the fetal body parts to each other. It's the characteristic posture of the fetus in utero. |
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This is the relation of the presenting part (occiput, sacrum, mentum) or sinciput (deflexed vertex) to the four quadrants of the mother's pelvis. Denoted by a 3-part abbreviation. |
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The relation of the presenting part of th fetus to an imaginary line drawn between the maternal ischial spines and is a measure of the degree of descent of the presenting part of the fetus through the birth canal. |
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Term used to indicate that the largest transverse diameter of the presenting part has passed through the maternal pelvic brim or inlet into the true pelvis and usually corresponds to 0. |
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The premature separation of the placenta before childbirth. There's no perfusion to the baby. Mom will pinpoint the pain and the abdomen will be board-like from bleeding. |
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A rare case in which the placenta forms low in the uterus and partially to completely covers the cervix. Typically the pt will have no pain. Never do a vaginal exam when this occurs! |
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This can be heard around 8-10 weeks with a doppler. It promotes maternal/fetal bonding. |
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Kick Test or DFMC (daily fetal movement count) |
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Definition
This test is usually started between 24-28 weeks. You want 3 or more in one hour. Can be affected by the fetal sleep cycle and big meals. |
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This test is usually ordered after the 27th week of pregnancy. A normal fetus will produce characteristic HR increase patterns in response to fetal movement. You want the result to be reactive. |
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CST (Contraction Stress Test) aka challenge stress test. |
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This test is done if a patient's NST is read non-reactive. You want the results to show 3 contractions in 10 mins without late decelerations. You want it to read as negative. The mother is given a tiny bit of oxytocin or asked to rub palm over nipple to stimulate secretion of oxytocin. |
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Biophysical Profile (BPP) |
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Definition
This is another test that can be done after a non-reactive NST. It gives more detailed information about the fetus. Based on 5 variables: fetal breathing movement; gross body movement; fetal tone; reactive FHR; and qualitative amniotic fluid volume. Each variable receives a 2 or a 0. |
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This is usually used to calculate EDC and can be done anytime during a pregnancy. Also used for crown rump measurements and biparietal diameter. You can measure the infant, estimate amniotic fluid volume, and locate the size and position of the placenta. Used in the BPP evaluation. |
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AFP (MSAFP) Maternal serum Alpha-fetoprotein |
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This test is not used much anymore due to false positives, but can be done b/w 15-22 weeks. It's used a screening tool for neural tube defects. |
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This test is possible after week 14. Uses an US as a guide and can test fetal lung maturity and prenatal dx of genetic disorders or genetic anomalies. Instruct the pt to call if leaking should occur, fever or cramping to rule out PTL or if there's a decrease or absence of fetal movement following the test. |
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L/S ratio (lecithin/sphingomyelin) |
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This test is usually done around the 35th week of pregnancy and beyond and determines fetal lung maturity. If greater than 2, it is safe to deliver. |
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Chorionic villi sampling (CVS) |
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This test can be done b/w 6-12 weeks and detects fetal chromosomal abnormalities. A small tissue specimen from the fetal portion of the placenta is removed. There's a risk of miscarriage with this test, but it's very accurate. |
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A med used for PTL used to increase production of surfactant in fetal lungs. |
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Med used for PTL that results in relaxing the uterus, bronchodilation and vasodilation. Causes a maternal increase in HR and tremors. Fetus may experience tachycardia. |
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Med used for PTL that acts as a CNS depressant, thus depressing uterine activity. Monitor resp, LOC and check reflexes. Keep calcium gluconate at the bedside. |
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Prostaglandin Synthetase Inhibitors (Naproxen, Motrin) |
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Definition
Med used for PTL that causes the uterus to stop contracting by inhibiting prostaglandins. |
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Calcium Antagonsitic-Nifedipine |
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Definition
This med is used as maintenance for PTL following administration of other tocolytics to prevent the return of uterine contractions. May cause flushing and a transient increased HR. |
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