Penny Ch. 32
The cervix should measure at least ______ in length
3 cm
The placenta is considered too thick when it measures:
>4 cm
The measurement that should be carefully scrutinized in cases of IUGR is the:
AC
A succenturiate lobe of the placenta refers to a:
Accessory lobe
An anechoic mass is noted within the umbilical cord during a routine sonographic examination. What is the most likely diagnosis?
Allantoic cyst
Increased S/D ratio is associated with all of the following except: -IUGR -Placental insufficiency -Allantoic cysts -Perinatal mortality
Allantoic cysts
IUGR is evident when the EFW is:
Below the 10th percentile
All of the following are associated with polyhydraminos except:
Bilateral multicystic dysplastic kidney disease
Doppler assessment of the middle cerebral artery:
Can evaluate the fetus for hypoxia
The normal umbilical cord insertion point into the placenta is:
Central
The most common placental tumor is the:
Chorioangioma
The fetal contribution of the placenta is the:
Chorion frondrosum
The maternal contribution to the placenta is the:
Decidua basalis
Normally, the S/D ratio:
Decreases with advancing gestation
All of the following are associated with oligohydraminos except: -Bilateral renal agenesis -Infantile polycystic kidney disease -Premature rupture of membranes -Duodenal atresia
Duodenal atresia
All of the following are associated with a thin placenta except:
Fetal hydrops
All of the following are clinical features of the placental abruption except:
Funneling of the cervix
Evidence of polyhydraminos should warrant a careful investigation of the fetal:
Gastrointestinal system
The placenta releases _____________ to maintain the corpus luteum
Human chorionic gonadotropin
Fetal TORCH is frequently associated with:
Intracranial calcifiactions
Which of the following would be least likely associated with immune hydrops?
Leiomyoma
Which one of the following is described as the situation in which the placental edge extends into the lower uterine segment but ends more than 2cm away from the internal os?
Low-lying placenta
Mothers with gestational diabetes run the risk of having fetuses that are considered:
Macrosomic
Insertion of the umbilical cord at the edge of the placenta is referred to as:
Marginal cord insertion
Pools of maternal blood noted within the placental substance are referred to as:
Maternal lakes
What would be most likely confused for a uterine leiomyoma?
Myometrial contraction
Mothers with pregestational diabetes, as opposed to gestational diabetes, have an increased risk of a fetus with:
Neural tube defects
Penetration of the placenta beyond the uterus wall would be referred to as:
Placenta percreta
One of the most common causes of painless vagina bleeding in the second and third trimesters is:
Placenta previa
All of the following are associated with a thick placenta except: -Fetal infections -Rh isoimmunization -Placental insufficiency -Multiple gestations
Placental insufficiency
Pregnancy-induced maternal high blood pressure and excess protein in the urine after 20 weeks' gestation is termed:
Preeclampsia
Which one of the following would increase the likelihood of developing placenta previa?
Previous cesarean section
Nonimmune hydrops is associated with all of the following except:
RH isoimmunization
With Rh isoimmunization, the maternal antibodies cross the placenta and destroy the fetal:
Red blood cells
Placenta accrete denotes:
The abnormal attachment of the placenta to the myometrium
When the placenta completely covers the internal os, it is referred to as:
Total previa
The normal umbilical cord has:
Two arteries and one vein
A velamentous cord insertion is associated with which of the following?
Vasa previa
Doppler sonography reveals vascular structures coursing over the internal os of the cervix. This finding is indicative of:
Vasa previa
The abnormal insertion of the umbilical cord into the membranes beyond the placental edge is termed:
Velamentous insertion