30 Questions
What is the recommended management for early intrauterine growth restriction (IUGR)?
Detailed ultrasound
Which factor warrants maintaining a high index of suspicion in cases of oligohydramnios?
Aneuploidy
What should be included in the surveillance plan for monitoring fetal well-being in IUGR cases?
Doppler ultrasound assessment
What is a common adverse outcome associated with intrauterine growth restriction (IUGR)?
Polycythemia
Which fetal parameter is not typically included in the surveillance plan for IUGR?
Cordocentesis
What type of Doppler is recommended for assessing fetal blood flow in cases of intrauterine growth restriction (IUGR)?
Umbilical artery Doppler
In cases where a significant proportion of the villous vascular tree is abnormal, what can be observed in terms of end-diastolic velocities?
Moderate reversal
What is indicated by the persistence of an early diastolic notch in the uterine artery flow velocity waveform?
Increased spiral artery blood flow resistance
What is the significance of a high-volume diastolic flow in the uterine artery beyond 24 weeks gestation?
Successful trophoblast invasion
What does the decline in diastolic velocities associated with elevated placental vascular resistance lead to?
Increase in Doppler index
What is indicated by abnormal precordial venous flows in cases where reversal of end-diastolic velocities is present?
Decreased fetal cardiac function
What is the significance of a low-impedance waveform with no diastolic notch in the uterine artery by 20 weeks gestation?
Low risk of IUGR and preeclampsia
What is the main difference in fetal growth between the first 16 weeks and beyond 32 weeks?
Both hyperplasia and hypertrophy during the first 16 weeks, with only hypertrophy beyond 32 weeks
What factors can influence intrauterine growth according to the provided text?
Altitude, race, and smoking
What is a characteristic of symmetric Intrauterine Growth Restriction (IUGR) according to the text?
Proportionally small fetus with abnormal head circumference, abdominal circumference, and femur length
What distinguishes Asymmetric IUGR from Symmetric IUGR?
Asymmetric IUGR shows slow abdominal circumference growth but normal head circumference and femur length
Which condition is associated with Tri 13 according to the text?
Asymmetric IUGR
What is an important ultrasound measurement for diagnosing IUGR according to the text?
Transcerebellar distance
What happens to the Doppler index in cases of marked brain sparing in IUGR?
Declines
What is a potential indicator of an abnormal Doppler index in fetal circulation?
Decrease in diastolic velocity
How does cerebral edema impact the Indices PI and RI?
PI decreases
In the normal fetal thoracic aorta, what range of Pulsatility Index (PI) values are observed from 20 to 40 weeks?
1.8 - 2.2
What characterizes the blood flow pattern in the ductus venosus under normal circumstances?
Antegrade flow throughout the cardiac cycle
How is the Doppler index affected by increased resistance in IUGR in reference to the middle cerebral artery?
Decreases
What is the effect of low dose aspirin, according to Leitich et al 1997 meta-analysis?
Decrease in I.U.G.R. and pre-eclampsia
What is recommended as the basis for decision-making in case of preterm I.U.G.R.?
Maternal health, fetal function tests, biochemical test of fetal lung maturity
What is the association observed between high resistance and IUGR involving the umbilical artery?
Trudinger, 1985
What percentage of precipitating antenatal asphyxia can be predicted by positive postnatal ventilation (PPV)?
92%
What characteristic describes a normal umbilical artery flow velocity waveform?
Marked positive end-diastolic velocity increasing towards term
'Moderate abnormalities in the villous vascular structure' lead to what in terms of blood flow resistance and end-diastolic velocities?
Raise the blood flow resistance and decline in end-diastolic velocities
Test your knowledge on Antepartum Therapy for Intrauterine Growth Restriction (IUGR) and pre-eclampsia, with a focus on maternal hyperoxia, low dose aspirin, timing of delivery, fetal lung maturation, and umbilical artery wave-forms. Explore the effectiveness of various treatments through studies and meta-analyses.
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