Fetal and Neonate assessment Flashcards
(48 cards)
The mean duration of a singleton pregnancy (birth of only one child during a single delivery with a gestation of 20 weeks or more) is __________
280 days/40 weeks
Term is defined as the period from __________________ (optimal time for delivery)
37 weeks to 42 weeks
Early term ______weeks
37 to 38
Full term ______weeks
39 to 40
Late term ______weeks
41 to 42
Determinations of gestational age is most accurate when ultrasonographic measurement of the fetus or embryo is performed in the ___________________.
first trimester (up to and including 14 weeks)
Recommended for all pregnancies given its ability to :
- Viability
- Fetal number
- Placental location
- Screen for fetal structural abnormalities in the second trimester
An increased risk for delivering a small-for-gestational age baby and/or having a preterm delivery is associated with _____________________________.
low maternal gestational weight gain.
Higher risk for delivering a large-for-gestational age baby and/or cesarean delivery is associated with ____________.
excessive gestational weight gain.
Although the _________ examination has several limitations (especially in the setting of a small fetus, maternal obesity, multiple pregnancy, uterine fibroids, or polyhydramnios), it is safe, is well tolerated, and may add valuable information to assist in antepartum management.
abdominal
what is Leopold Maneuver designed to do?
identify specific fetal landmarks or to reveal a specific relationship between the fetus and the mother
1st maneuver - measurement of fundal (uterus) height, uterus can be palpated above the pelvic brim at approximately 12 weeks’ gestation then should increase 1 cm per week, reaching the umbilicus at ________.
20-22 weeks
Fundal height between 20 and 32 weeks gestation (in cm) is __________ ______ to the gestational age ( in weeks) in a healthy women of average weight with an appropriately growing fetus.
approximately equal
Maximal fundal height occurs at approximately ___ weeks’ gestation, after which time the fetus drops into the pelvis in preparation for labor
36
Fetal Growth Restriction is associated with a number of significant adverse perinatal outcomes: (5)
- Intrauterine Demise
- Neonatal Morbidity
- Neonatal Mortality
- Cognitive Delay in
Childhood - Chronic Diseases (Obesity, Type II Diabetes, CAD, Stroke in Adulthood
Maternal disorders associated with fetal growth restriction include any condition that can potentially result in vascular disease, such as :
pregestational diabetes, hypertension, antiphospholipid antibody syndrome, autoimmune diseases and renal insufficiency, malnutrition, and substance abuse
Fetal conditions that may result in growth restriction include:
teratogen exposure, including certain medications; intrauterine infection; aneuploidy, most often trisomy 13 and trisomy 18; and some structural malformations, such as abdominal wall defects and congenital heart disease.
Fetal growth restriction is associated with an increased risk for ______
stillbirth
The risk for stillbirth is further increased when fetal growth restriction occurs in the context of ________ or _______.
oligohydramnios or abnormal diastolic blood flow in the umbilical artery.
_____& ______diagnosis of fetal growth restriction coupled with ________________leads to an improvement in perinatal outcome. If fetal growth restriction is suspected clinically and on the basis of ultrasonography, a thorough evaluation of the mother and fetus is indicated.
Early and accurate, appropriate intervention
Fetal macrosomia, defined as growth beyond an _________________regardless of gestational age
absolute birth weight of 4000 g or 4500 g
the risk for labor abnormalities, maternal morbidity, and newborn complications increases with birth weights between__________ & _______; newborn and maternal morbidity increases significantly with birth weights between ___________ and perinatal mortality (e.g., stillbirth and neonatal mortality) increase with birthweights _____________ Shoulder dystocia, defined as a failure of delivery of the fetal shoulder(s) after initial attempts at downward traction, is the most serious consequence of fetal macrosomia, and requires additional maneuvers to effect delivery.46 The fetal injuries associated with shoulder dystocia include fracture of the clavicle and damage to the nerves of the brachial plexus, resulting in Erb-Duchenne paralysis, of which the vast majority resolve by 1 year of age. Compared with a prevalence of 0.2% to 3.0% for all vaginal deliveries, the risk for shoulder dystocia at birth weights of 4500 grams or more is 9% to 14%, and increases further in the setting of maternal diabetes to 20% to 50%.47,48
4000 and 4499 g; 4500 and 4999 g; greather than 5000 g.
Estimated fetal weight measurements are_____________ in macrosomic fetuses than in normally grown fetuses, and factors such as low amniotic fluid volume, advancing gestational age, maternal obesity, and fetal position can compound these inaccuracies
less accurate
A number of alternative ultrasonographic measurements have therefore been proposed in an attempt to better identify the macrosomic fetus, including fetal abdominal circumference alone,__________cheek-to-cheek diameter and ___________________________________.However, these measurements remain investigational.
umbilical cord circumference
subcutaneous fat in the mid humerus, thigh, abdominal wall, and shoulder