First Trimester Development
Sonography Ethics
First Trimester Complications
Fetal Development
Second and Third Trimester Sonography
100
The term used by embryologists for the time from conception.
What is conceptual age?
100
The primary ethical principle supporting informed consent in obstetric sonography.
What is respect for autonomy?
100
The most common occurrence of bleeding in the first trimester.
What is subchorionic hemorrhage?
100
The substance produced in the fetal liver and detected in maternal blood.
What is alpha-fetoprotein?
100
The most reliable method used to assess the amount of amniotic fluid.
What is the amniotic fluid index (AFI)?
200
The phenomenon where the midgut temporarily herniates into the umbilical cord.
What is physiologic herniation?
200
The principle that directs sonographers to avoid causing harm.
What is nonmaleficience?
200
A large, empty gestational sac without a yolk sac or embryo.
What is a blighted ovum?
200
The key marker measured for assessing fetal lung maturity.
What is the lecithin-sphinomyelin ration (LS ratio)?
200
The word used of sonographic appearance indicating the degree of ossification in fetal bones.
What is echogenicity?
300
The gestational age at which the yolk sac is first visible.
What is 5 weeks?
300
The code of ethics adopted for diagnostic medical sonography.
What is the SDMS Code of Ethics?
300
The gestational sac size at which a yolk sac should be visible.
What is 8 mm?
300
The part of the fetal brain that appears echogenic in early development.
What is the choroid plexus?
300
The sonographic appearance/grade of a placenta with small calcifications after 36 weeks.
What is Grade II?
400
The heart of the embryo starts beating at approximately this many days.
What is 35 days?
400
The key ethical principle involved in fair distribution of healthcare benefits and burdens.
What is justice?
400
The condition where fetal cardiac activity is absent despite an embryo over 7 mm.
What is pregnancy failure?
400
The structure that allows fetal blood to bypass the lungs by connecting the pulmonary artery and aorta.
What is the ductus arteriosus?
400
The axis of the fetal heart relative to the thorax.
What is approximately 45 degrees?
500
The phase when the embryonic disk converts into a trilaminar structure.
What is gastrulation?
500
The principle requiring sonographers to keep patient information confidential, even from family members, without explicit consent.
What is confidentiality?
500
The appearance of a hydatidiform more on sonography.
What is a "snowstorm" "moth-eaten" or "cluster of grapes" pattern?
500
The grading scale used to assess fetal breathing, movement, tone, and heart rate.
What the biophysical profile (BPP)?
500
The sonographic method used to measure resistance and flow in fetal blood vessels.
What is Doppler sonography?