Question | Answer |
Infants in the __ percentile are classified as having intrauterine growth restriction (IUGR) | < or =10th |
Infants in the __ percentile are classified as large for gestational age (LGA) | > or = 90th |
Both IUGR and LGA fetuses have increased risk for __ | Perinatal morbidity and mortality |
A pregnancy cannot be described as IUGR unless what is known with certainty | Gestational age |
What does symmetric IUGR refer to | Infants in which all organs are decreased proportionally |
Symmetric IUGR infants are more likely to have __ | An endogenous defect that results in impairment of early fetal cellular hyperplasi |
What does asymmetric IUGR refer to | Infants in which all organs are decreased disproportionately (abdominal circumference is affected to a greater degree than head circumference) |
Asymmetric IUGR infants are more likely caused by __ | Intrauterine deprivation that results in redistribution of flow to the brain and heart at the expense of less important organs such as the liver and kidneys |
An infant with an autosomal __ is more likely to be IUGR | Trisomal |
Multiple gestation is associated with a __% increased incidence of IUGR fetuses | 20-30 |
What is the most common maternal complication causing IUGR | Hypertension |
Women who stop smoking before __ weeks gestation are not at increased risk for having an IUGR infant | 16 |
Measurable effect on birthweight (risk of IUGR) seen with daily PO intake of: | <1500 kcal/day |
What are some vascular diseases that are risk factors for having an IUGR infant | Collagen vascular disease, insulin-dependent diabetes mellitus associated with microvasculopathy and preeclampsia |
What is the best parameter for early dating of pregnancy on ultra sound | Crown-rump length |
What are the most accurate parameters for dating of pregnancy in the second trimester | Biparietal diameter, and HC |
Most accurate parameter for dating of pregnancy in the third trimester | Head circumference |
Single most common preventable cause of IUGR in infants in the US | Smoking |
Data shows that IUGR infants appear to catch up in weight in the first __ of life | 6 months |
Taken as a group IUGR infants have more __ than do their AGA peers | Neurologic and intellectual deficits |
The incidence of __ is increased in IUGR infants | Sudden infant death syndrome |
Maternal obesity is associated with a __ increased likelihood of fetal macrosomia | 3-4 fold |
Male fetuses are __g heavier on average than female fetuses | 150 |
What is the best single measure in evaluating macrosomia by ultrasound in diabetic mothers | Abdominal circumference |
Estimated fetal wt. by __ is not very accurate | Ultrasound |
Pregnant who drinks during pregnancy and inadequate peri-natal care | Fetal alcohol syndrome / low birth weight |
Fetuses with neural tube defects are frequently: | IUGR weighing approximately 250g less than controls |
Women who stop smoking before __ weeks gestation are not at increased risk for having an IUGR infant | 16 |