Chapter 22 (Obstetric Sonography Overview) Flashcards
All of the following may be visualized at the correct level of the head circumference except: A. third ventricle B. thalamus C. Cavum D. Falx cerebelli
D. Falx cerebelli
Typically with a miscarriage, the serum hCG value will be:
decreased
Typically, with anencephaly the maternal serum alpha-fetoprotein value will be :
elevated
The quadruple screen includes an analysis of all of the following except: A. hCG B. alpha-fetoprotein C. inhibin A D. pregnancy associated plasma protein A
D. pregnancy associated plasma protein A
Typically, with gastroschisis, the maternal serum alpha-fetoprotein value will be
elevated
The reduction of blood return to the maternal heart caused by the gravid uterus compressing the IVC describes:
supine hypotensive syndrome
The second trimester refers to what weeks?
13-26
The clinical manifestations of supine hypotensive syndrome include all except: A. proteinuria B. tachycardia C. nausea D. pallor
A. proteinuria
Painless second trimester bleeding is most often associated with:
placenta previa
All of the following are observed during a BPP except: A. fetal tone B. thoracic movement C. fetal breathing D. fetal circulation
D. fetal circulation
Which would not be decreased in the presence of Edwards syndrome? A. estriol B. hCG C. alpha-fetoprotein D. all would be decreased
D. all would be decreased
All of the following are produced by the placenta except: A. alpha-fetoprotein B. hcG C. Pregnancy associated Plasma protein A D. inhibin A
A. alpha-fetoprotein
A myelomeningocele is associated with:
spina bifida
The anechoic space along the posterior aspect of the fetal neck is the:
nuchal translucency
The premature separation of the placenta from the uterine wall describes:
placental abruption
Something that is idiopathic is said to be:
from an unknown cause
What is the most common form of fetal presentation?
cephalic
Fetal presentation is determined upon the fetal part closest to the:
internal os of the cervix
What is the fetal presentation when the fetal buttocks are closest to the cervix?
frank breech
Which of the following would not typically produce an elevation in hCG? A. down syndrome B. anembryonic pregnancy C. triploidy D. molar pregnancy
B. anembryonic pregnancy
The triple screen usually includes an analysis of :
hcG, alpha-fetoprotein, and inhibin A
The dilation of the renal collecting system secondary to the obstruction of normal urine flow defines:
hydronephrosis
The physiologic ovarian cyst that develops after ovulation has occurred is the:
corpus luteum cyst
The protein that is produced by the yolk sac, fetal GI tract, and the fetal liver is the:
alpha-fetoprotein
What best describes the optimal instance to take the femur length measurement:
When the long axis of the femoral shaft is perpendicular to the sound beam
The AC should include all of the following except: A. fetal stomach B. the fetal thoracic spine C. the umbilical vein D. the kidneys
the kidneys
Which artifact is produced when the sound beam is barely attenuated through a fluid?
posterior enhancement
Which artifact is caused be attenuation of the sound beam?
posterior shadowing
Which of the following would most likely not be associated with an elevated maternal serum alpha-fetoprotein? A. anencephaly B. down syndrome C. meningocele D. myelomeningocele
B. down syndrome
What is AKA trisomy 13?
Patau syndrome
