OB/GYN ARDMS Registry Review Questions And Answers 20262027 A+ Grade
Rhombencephalon ✔️The primitive hindbrain can be seen as a cystic structure with in the embryonic head?
Decidua Basalis ✔️The maternal side of the developing placenta is referred to as the?
1 mm/day ✔️Up to 10 weeks gestational age, the mean diameter of the normal gestational sac should grow?
12 weeks
CRL measures > 45mm ✔️Physicologic hernation of fetal intestines outside the abdomen should not be seen after what gestational age?
7 mm ✔️The base of the umbilical cord should not exceed?
3600 units/liter
2000 units/liter ✔️One should be able to transabdominally image a gestational sac when the IRC level for hCG is = or >?
Transvaginally?
Hydatiform Mole ✔️Patient is 10 weeks by menstrual dates with pregnancy induced hypertension. You suspect?
Preeclamsia ✔️Almost always pathonomonic of a molar pregnancy in the 1st trimester?
Dilated cervix ✔️Pregnant patient presents with bledding and cramping. What would be suspect of an inevitable abortion?
Heteroectopic pregnancy ✔️An ectopic with a normal IUP?
Yolk Sac ✔️To differentiate an early IUP from a pseudogestational sac, it is helpful to visualize?
6mm
Irregulary shaped
Calcified ✔️A yolk sac is considered abnormal when it's diameter exceed? Shape? Appearance?
Methotrexate ✔️What drug can be used to treat an early unruptured ectopic pregnancy in order to preserve fertility?
Anteflexed ✔️The most common position of a uterus is?
Interstitual
Rupture is accompanied by bleeding from the uterin arteries ✔️In a ruptured extopic pregnancy, which section of the tube is most life
threatening?
Why?
The amnion and yolk sac ✔️The double bleb sign refers to?
8 weeks
10 weeks ✔️At how many weeks, the normal gestational sac should occupy 1/2 of the uterine cavity and show a yolk sac, embryo and heart
beat?
At how many weeks will it fill the uterine cavity with a well defined fetus?
Trophoblastic Disease ✔️1. A group of rare tumors that involve abnormal growth of cells inside the uterus. They start in cells that would normaly
develope into the placenta.
Complete Hydatiform Mole ✔️Most common form of Trophoblastic Disease?
Complete ✔️A Hydatidiform Mole from trophoblastic neoplasia without the presents of an embryo?
Partial ✔️A Hydatidiform Mole from trophoblastic neoplasia with an abnormal embryo or fetus.
,Theca Lutein Cysts ✔️Functional ovarian cysts are called?
Trophoblastic Disease ✔️Associated with:
Hydatididform Mole
Theca Lutein Cysts
Pregnancy induced hypertension
Hyperemesis gravidarum
Large for gestational age
All characteristics of?
CRL ✔️Most reliable calculation for the EDC is?
11 weeks ✔️Because of spinal segmentation, CRL begins to loose accuracy after how many weeks?
Vitelline Duct (omphalomesenteric duct) ✔️The structure that initially maintains a connction between the yolk sac and embryo once they
diverge from each other?
Contains and artery and a vein.
Nuchal translucency ✔️Thickening of the nuchal soft tissue during the 1st trimester and a strong corrolation for chromosomal defects?
Shirodkar Procedure ✔️A procedure preformed to treat and incompentent cervix. The most complicated, the suture is almost completely buried
beneath the cervical mucosa?
McDonald Procedure ✔️A procedure preformed to treat and incompentent cervix with a less invasive outcome using a purse string suture.
Ectopic ✔️With this type of pregnancy, the most common symptom is pain?
Interstital ✔️An ectopic pregnancy in this part of the tube is more life threatening?
3mm ✔️Normally, nuchal translucency doesn't exceed?
Chorid Plexus ✔️This lies within the atria of the lateral ventricals bilaterally?
Lateral Ventricular Atria ✔️In ruling out hydrocephalus, where would one 1st begin to see enlargement?
1cm in largest dimension transversely ✔️The normal measurements for the lateral ventricla of the fetal brain are?
3 ossidication centers (2 posterior pointing toward each other, 1 anterior) ✔️When the fetal spine is imaged transversly, the ultrasound
demonstrates?
M-mode ✔️What US modality would you us to prove fetal life on a frozen image?
Left Atrium ✔️The anatomic structure closest to the spine in a 4-chamber heart view is?
Fetal Heart ✔️This occupies 1/3 of the chest cavity pointing toward the left side of the fetus?
RVOT - Pulmonary Artery
LVOT - Ascending Aorta ✔️The great vessels of the heart consist of?
Foramen Ovale ✔️Communication between right and left Atria is termed?
45 degree angle to the left of midline ✔️In a normal fetus, the heart is positioned at what angle?
Chordae Tendineae / papillary muscle ✔️A small rounded echoginic structure withing the left ventrical of the heart is?
Coronal ✔️Which view best demonstrated the diaphram?
Transverse @ the level of 4-chamber heart
, Transverse view @ level of 4-chamber heart ✔️The thoracic circumference is measured in the?
Aortic Arch ✔️The candy-cane pulsating vessel imaged somewhat to the left of the spine in longitudinal is?
Esophageal Artesia ✔️The fluid filled stomach should always be seen in the upper LT quadrant. If not seen, you should suspect?
Esophagel Atresia ✔️The esophagus does not properly develop or is missing?
12-13 weeks ✔️At what gestational age is the amniotic fluid volume and fluid in the fetal bladder almost entirely due to functioning kidneys?
30-45 mins. ✔️The fetal bladder should fill and empty approximatly every?
Posterior Urethral Valves ✔️The bladder of the male fetus is sometimes enlarged because of?
Most common cause of male fetus bladder obstruction outlet?
Clocal Malformation or Urethral Atresia ✔️Most common female bladder obstruction outlet?
Iliac Bones ✔️What structures can be seen at the level of the bladder using a coronal view of the fetal pelvis on an OB exam?
Abdomenal Circumference ✔️When you image the fetal stomach transverse at the level of the portal vien, you are at the right level for what
measurement?
MSAFP
Triple Screen
CVS
Amniocentesis ✔️What lab tests are performed to determine if a fetus has a neural tube defect or Down's syndrome?
Amniocentesis ✔️This test can rule out Down's syndrome?
Fetal Anatomy ✔️2nd trimester OB US are better than 1st trimester in determining?
Vertex ✔️Most favortable position of the baby for birth where the crown area of the head presents first?
Vasa Previa ✔️In sagittal midline view, if the cord is positioned near the cervical os, this is called?
37 weeks ✔️Dr's usually don't consider a C-section due to previa until what gestational week?
Chorion and Decidua ✔️Th placenta developes from the?
Excessive Wharton's jelly ✔️A thickened appearing cord is most likely from?
Functions of the placenta ✔️This produces alpha-fetoprotein, provides nurishment for the fetus as well as protection?
Succenturiate Placenta ✔️An accessory placenta lobe is called?
2cm ✔️A placenta previa can be ruled out if the placental edge is at least how far from the internal cervical os?
Placenta Accreta ✔️A severe OB complication involving an abnormally deep attachment of the placenta through the endometrium and
myometrium?
Hydrops
Infection
Triploidy-lethal chromosome abnormality (69 instead of 46)
Diabetes ✔️A placental measuring 7cm in the greatest AP dimension may be associated with?
4cm ✔️The thickness of the full-term placental should not measure more than?
Chorioangioma ✔️Benign vascular tumors of the placenta, large ones can cause IUGR, Hydrops and Abruption?
Rhombencephalon ✔️The primitive hindbrain can be seen as a cystic structure with in the embryonic head?
Decidua Basalis ✔️The maternal side of the developing placenta is referred to as the?
1 mm/day ✔️Up to 10 weeks gestational age, the mean diameter of the normal gestational sac should grow?
12 weeks
CRL measures > 45mm ✔️Physicologic hernation of fetal intestines outside the abdomen should not be seen after what gestational age?
7 mm ✔️The base of the umbilical cord should not exceed?
3600 units/liter
2000 units/liter ✔️One should be able to transabdominally image a gestational sac when the IRC level for hCG is = or >?
Transvaginally?
Hydatiform Mole ✔️Patient is 10 weeks by menstrual dates with pregnancy induced hypertension. You suspect?
Preeclamsia ✔️Almost always pathonomonic of a molar pregnancy in the 1st trimester?
Dilated cervix ✔️Pregnant patient presents with bledding and cramping. What would be suspect of an inevitable abortion?
Heteroectopic pregnancy ✔️An ectopic with a normal IUP?
Yolk Sac ✔️To differentiate an early IUP from a pseudogestational sac, it is helpful to visualize?
6mm
Irregulary shaped
Calcified ✔️A yolk sac is considered abnormal when it's diameter exceed? Shape? Appearance?
Methotrexate ✔️What drug can be used to treat an early unruptured ectopic pregnancy in order to preserve fertility?
Anteflexed ✔️The most common position of a uterus is?
Interstitual
Rupture is accompanied by bleeding from the uterin arteries ✔️In a ruptured extopic pregnancy, which section of the tube is most life
threatening?
Why?
The amnion and yolk sac ✔️The double bleb sign refers to?
8 weeks
10 weeks ✔️At how many weeks, the normal gestational sac should occupy 1/2 of the uterine cavity and show a yolk sac, embryo and heart
beat?
At how many weeks will it fill the uterine cavity with a well defined fetus?
Trophoblastic Disease ✔️1. A group of rare tumors that involve abnormal growth of cells inside the uterus. They start in cells that would normaly
develope into the placenta.
Complete Hydatiform Mole ✔️Most common form of Trophoblastic Disease?
Complete ✔️A Hydatidiform Mole from trophoblastic neoplasia without the presents of an embryo?
Partial ✔️A Hydatidiform Mole from trophoblastic neoplasia with an abnormal embryo or fetus.
,Theca Lutein Cysts ✔️Functional ovarian cysts are called?
Trophoblastic Disease ✔️Associated with:
Hydatididform Mole
Theca Lutein Cysts
Pregnancy induced hypertension
Hyperemesis gravidarum
Large for gestational age
All characteristics of?
CRL ✔️Most reliable calculation for the EDC is?
11 weeks ✔️Because of spinal segmentation, CRL begins to loose accuracy after how many weeks?
Vitelline Duct (omphalomesenteric duct) ✔️The structure that initially maintains a connction between the yolk sac and embryo once they
diverge from each other?
Contains and artery and a vein.
Nuchal translucency ✔️Thickening of the nuchal soft tissue during the 1st trimester and a strong corrolation for chromosomal defects?
Shirodkar Procedure ✔️A procedure preformed to treat and incompentent cervix. The most complicated, the suture is almost completely buried
beneath the cervical mucosa?
McDonald Procedure ✔️A procedure preformed to treat and incompentent cervix with a less invasive outcome using a purse string suture.
Ectopic ✔️With this type of pregnancy, the most common symptom is pain?
Interstital ✔️An ectopic pregnancy in this part of the tube is more life threatening?
3mm ✔️Normally, nuchal translucency doesn't exceed?
Chorid Plexus ✔️This lies within the atria of the lateral ventricals bilaterally?
Lateral Ventricular Atria ✔️In ruling out hydrocephalus, where would one 1st begin to see enlargement?
1cm in largest dimension transversely ✔️The normal measurements for the lateral ventricla of the fetal brain are?
3 ossidication centers (2 posterior pointing toward each other, 1 anterior) ✔️When the fetal spine is imaged transversly, the ultrasound
demonstrates?
M-mode ✔️What US modality would you us to prove fetal life on a frozen image?
Left Atrium ✔️The anatomic structure closest to the spine in a 4-chamber heart view is?
Fetal Heart ✔️This occupies 1/3 of the chest cavity pointing toward the left side of the fetus?
RVOT - Pulmonary Artery
LVOT - Ascending Aorta ✔️The great vessels of the heart consist of?
Foramen Ovale ✔️Communication between right and left Atria is termed?
45 degree angle to the left of midline ✔️In a normal fetus, the heart is positioned at what angle?
Chordae Tendineae / papillary muscle ✔️A small rounded echoginic structure withing the left ventrical of the heart is?
Coronal ✔️Which view best demonstrated the diaphram?
Transverse @ the level of 4-chamber heart
, Transverse view @ level of 4-chamber heart ✔️The thoracic circumference is measured in the?
Aortic Arch ✔️The candy-cane pulsating vessel imaged somewhat to the left of the spine in longitudinal is?
Esophageal Artesia ✔️The fluid filled stomach should always be seen in the upper LT quadrant. If not seen, you should suspect?
Esophagel Atresia ✔️The esophagus does not properly develop or is missing?
12-13 weeks ✔️At what gestational age is the amniotic fluid volume and fluid in the fetal bladder almost entirely due to functioning kidneys?
30-45 mins. ✔️The fetal bladder should fill and empty approximatly every?
Posterior Urethral Valves ✔️The bladder of the male fetus is sometimes enlarged because of?
Most common cause of male fetus bladder obstruction outlet?
Clocal Malformation or Urethral Atresia ✔️Most common female bladder obstruction outlet?
Iliac Bones ✔️What structures can be seen at the level of the bladder using a coronal view of the fetal pelvis on an OB exam?
Abdomenal Circumference ✔️When you image the fetal stomach transverse at the level of the portal vien, you are at the right level for what
measurement?
MSAFP
Triple Screen
CVS
Amniocentesis ✔️What lab tests are performed to determine if a fetus has a neural tube defect or Down's syndrome?
Amniocentesis ✔️This test can rule out Down's syndrome?
Fetal Anatomy ✔️2nd trimester OB US are better than 1st trimester in determining?
Vertex ✔️Most favortable position of the baby for birth where the crown area of the head presents first?
Vasa Previa ✔️In sagittal midline view, if the cord is positioned near the cervical os, this is called?
37 weeks ✔️Dr's usually don't consider a C-section due to previa until what gestational week?
Chorion and Decidua ✔️Th placenta developes from the?
Excessive Wharton's jelly ✔️A thickened appearing cord is most likely from?
Functions of the placenta ✔️This produces alpha-fetoprotein, provides nurishment for the fetus as well as protection?
Succenturiate Placenta ✔️An accessory placenta lobe is called?
2cm ✔️A placenta previa can be ruled out if the placental edge is at least how far from the internal cervical os?
Placenta Accreta ✔️A severe OB complication involving an abnormally deep attachment of the placenta through the endometrium and
myometrium?
Hydrops
Infection
Triploidy-lethal chromosome abnormality (69 instead of 46)
Diabetes ✔️A placental measuring 7cm in the greatest AP dimension may be associated with?
4cm ✔️The thickness of the full-term placental should not measure more than?
Chorioangioma ✔️Benign vascular tumors of the placenta, large ones can cause IUGR, Hydrops and Abruption?
