Ch. 22 Obstetric Sonography Overview Flashcards
All of the following may be visualized at the correct level of the head circumference except: 3rd ventricle Thalamus Cavum septum pellucidum Falx cerebelli
Falx cerebelli
Typically, w/ a miscarriage, the serum human chorionic gonadotropin value will be:
- Elevated
- Decreased
- This laboratory finding is not helpful
- Unchanged
Decreased
Typically, w/ anencephaly, the maternal serum alpha-fetoprotein value will be:
- Elevated
- Decreased
- This laboratory finding isn’t helpful
- Unchanged
Elevated
Typically, w/ gastroschisis, the maternal serum alpha-fetoprotein value will be:
- Elevated
- Decreased
- This laboratory finding isn’t helpful
- Unchanged
Elevated
The quadruple screen includes an analysis of all of the following except:
- Human chorionic gonadotropin
- Alpha-fetoprotein
- Inhibin A
- Pregnancy-associated plasma protein A
Pregnancy-associated plasma protein A
The reduction in blood return to the maternal heart caused by the gravid uterus compressing the maternal IVC describes:
- Edwards syndrome
- Pulmonary obstructive syndrome
- Supine hypotensive syndrome
- Recumbent hypotensive syndrome
Supine hypotensive syndrome
The 2nd trimester typically refers to weeks: 12-26 13-26 10-28 26-42
13-26
The clinical manifestations of supine hypotensive syndrome include all of the following except: Proteinuria Tachycardia Nausea Pallor
Proteinuria
Painless 2nd trimester vaginal bleeding is most often associated w/: Placental abruption Ectopic pregnancy Miscarriage Placenta previa
Placenta previa
All of the following are observed during a biophysical profile except: Fetal tone Thoracic movement Fetal breathing Fetal circulation
Fetal circulation
Which of the following wouldn’t be decreased in the presence of Edwards syndrome?
- Estriol
- Human chorionic gonadotropin
- Alpha-fetoprotein
- All would be decreased
All would be decreased
All of the following are produced by the placenta except:
- Alpha-fetoprotein
- Human chorionic gonadotropin
- Pregnancy-associated plasma protein A
- Inhibin A
Alpha-fetoprotein
A myelomeningocele is associated w/: Down syndrome Spina bifida Edwards syndrome Patau syndrome
Spina bifida
The anechoic space along the posterior aspect of the fetal neck is the: Nuchal fold Nuchal cord Nuchal translucency Rhombencephalon
Nuchal translucency
The premature separation of the placenta from the uterine wall before the birth of the fetus describes: Placenta previa Placental abruption Ectopic cordis Subchorionic hamartoma
Placental abruption
Something that is idiopathic is said to be:
- Caused by a functional abnormality
- Related to fetal development
- From an unknown cause
- Found incidentally
From an unknown cause
Of the following forms of fetal presentation, which is the most common? Cephalic Complete breech Frank breech Transverse
Cephalic
Fetal presentation is determined upon the fetal part closest to the:
- External os of the cervix
- Fundus of the uterus
- Internal os of the cervix
- Body of the uterus
Internal os of the cervix
What’s the fetal presentation when the fetal buttocks are closest to the cervix referred to?
- Footling breech
- Frank breech
- Complete breech
- Transverse
Frank breech
Which of the following wouldn't typically produce an elevation in human chorionic gonadotropin? Down syndrome Anembryonic pregnancy Triploidy Molar pregnancy
Anembryonic pregnancy
The triple screen typically includes an analysis of:
- Human chorionic gonadotropin, alpha-fetoprotein, and estriol
- Human chorionic gonadotropin, alpha-fetoprotein, and Inhibin A
- Fetal nuchal translucency, alpha-fetoprotein, and Inhibin A
- Human chorionic gonadotropin, alpha-fetoprotein, and pregnancy-associated plasma protein A
Human chorionic gonadotropin, alpha-fetoprotein, and estriol
The dilation of the renal collecting system secondary to the obstruction of normal urine flow defines: Nephrocalcinosis Hydronephrosis Renal calculi Urinary stasis
Hydronephrosis
The physiologic ovarian cyst that develops after ovulation has occurred is the: Theca internal cyst Graafian cyst Corpus luteum cyst Cystic teratoma
Corpus luteum cyst
The protein that’s produced by the yolk sac, fetal GI tract, and the fetal liver is:
- Alpha-fetoprotein
- Human chorionic gonadotropin
- Pregnancy-associated plasma protein A
- Inhibin A
Alpha-fetoprotein
Which best describes the optimal instance to take the femur length measurement?
- When the epiphyseal plates are clearly identified and the shaft is parallel to the sound beam
- When the diaphysis of the femur is parallel to the sound beam
- When the long axis of the femoral shaft is perpendicular to the sound beam
- When the femoral shaft is parallel to the sound beam
When the long axis of the femoral shaft is perpendicular to the sound beam
The abdominal circumference should include all of the following except:
- The fetal stomach
- The fetal thoracic spine
- The umbilical vein
- The kidneys
The umbilical vein
Which artifact listed below is produced when the sound beam is barely attenuated through a fluid or a fluid-containing structure?
- Reverberation artifact
- Comet tail artifact
- Posterior shadowing
- Posterior enhancement
Posterior enhancement
Which artifact listed below is caused by attenuation of the sound beam?
- Reverberation artifact
- Comet tail artifact
- Posterior shadowing
- Posterior enhancement
Posterior shadowing
Which of the following would most likely not be associated w/ an elevation in maternal serum alpha-fetoprotein? Anencephaly Down syndrome Meningocele Myelomeningocele
Down syndrome
Which of the following is also referred to as trisomy 13? Down syndrome Edwards syndrome Turner syndrome Patau syndrome
Patau syndrome
