OB GYN ARDMS REGISTRY FINALS QUESTIONS AND
ANSWERS SET A+
✔✔15-16 weeks - ✔✔For best results, the optimal gestational age for karyotyping by
amniocentesis is?
✔✔Karyotyping - ✔✔This discribes the number of chromosomes and what they look like
under a microscope?
✔✔Autosomal Dominant - ✔✔A disorder that is caused by the presence of only one
defective gene is?
✔✔Chorionic Villus Sampling (CVS) - ✔✔The sample is taken from the chorion
frondosum
Provides a means of early diagnosis
The waiting period for results is shorter
Spotting is common following the procedure
✔✔10-12 weeks - ✔✔At what gestational age are chorionic villus sampling procedures
commonly performed?
✔✔X-linked Disease - ✔✔The mother must have the disease to pass it on to her
children
It is an auosomal dominant disorder
100% of all female offspring will have the disease process.
✔✔Fetal Demise - ✔✔Absence of cardiac motion for @ least 3 mins.
Diagnosis should be confirmed by 2 examiners
Spalding's sign might be present
Druel's sign might be present
✔✔Spalding's Sign - ✔✔Overlapping of the skull bones; indicates fetal death?
,✔✔Druel's Sign - ✔✔Edema of soft tissue of the head?
✔✔Robert's Sign - ✔✔Gas in the fetal abdomen?
✔✔Lithopedion - ✔✔Calcified Fetus?
✔✔Unknown causes - ✔✔The most common cause of fetal death in the 3rd trimester
is?
✔✔Chromosomal abnormalities - ✔✔The most common cause of fetal demise in 1st
trimester is?
✔✔Placental Abruption - ✔✔What condition is anindicaiton for immediate delivery, for
without it there is the risk of intrauterine demise?
✔✔Dialation & Cruettage (D&C)
Dialation & Evacuation (D&E)
Labor Induction - ✔✔Common medical interventions for the removal of retained
products of conception (RPOC)?
✔✔Associated with RPOC - ✔✔2 weeks postpartum with heavy bleeding.
Complex homogenous mass within endometrium with a + urine choriogonadotropin
(UCG).
Echogenic mass in the cervix with a +UCG.
Acoustic shadowing from bony structures within utern cavity.
✔✔Banana Sign - ✔✔This shape of the cerabellum is seen with nerual tube defects and
Arnold-Chiari Malformaiton?
✔✔Lemon Sing - ✔✔This shape of the head denotes the scalloping (overlapping frontal
bones) which make the cross section of the head appear in this shape rather than oval?
✔✔Holoprosencephaly - ✔✔Fetal forebrain failes to develope into 2 hemispheres.
Proboscis
Cyclopia
Fused thalami
✔✔Anencephaly - ✔✔The most common neural tube defect, absence of all or part of
the brain?
✔✔Encephaloceles - ✔✔Usually found in the occipital region, sac-like protrusions of
part of the brain through opening in the skull.
, ✔✔Hydrocephalus - ✔✔"Water on the brain" Abnormal accumulation of cerebrospinal
fluid in the ventricles or cavities of the brain? Can cause "dangling" or "drooping" chorid
plexus.
✔✔Microcephaly - ✔✔Abnormally small head, can mimic anencephaly, but has crainal
bones.?
✔✔Acrania - ✔✔When no cranial bones are present?
✔✔Dandy-Walker Malformation - ✔✔The presents of hydrocephalus, a posterior fossa
cyst, agenesis of corpus callosum and enlarged 4th ventrical.
✔✔Ventriculomegaly - ✔✔Dilation of the ventricular system without enlargement of the
cranium, caused by hydrocephalus?
✔✔Trisomy 13 (Patau Syndrome) - ✔✔The presents of Holoprosencephaly,
chromosomal condition associated with sever intellectual disability and physical
abnormalities, cells in the body contain extra genetic material from chromosome 13, this
abnormality increased with maternal age?
✔✔Holoprosencephaly - ✔✔Results from abnormal cleavage of the fetal forebrain?
✔✔Macrosomia - ✔✔Frequently associated with dibetic mother
the fetal head and abdomen are enlarged
Birth weight of 4000-4500g (8lb 13oz to 9lb 15oz)
✔✔Trisomy 18 (Edward's Syndrome) - ✔✔The 2nd most common Trisomy disorder. A
genetic disorder where a person has a 3rd copy of the material from chromosome 18
instead of the ususal 2 copies. Meiotic disjunction (error in cell division), more life
threatening in the early months/years of life, can live to 20-30's with assistance, usually
imcompatable with life.
✔✔Trisomy 21 (Down's Syndrome) - ✔✔1st most common trisomy, baby has 3 of the
21 chromosomes.
47 chromosomes instead of 46?
✔✔Triploidy - ✔✔a rare lethal chromosome abnormality caused by the presents of an
entire extra set of chromosomes? (69 instead of 46)
✔✔Lemon Sign - ✔✔Assocated with spina bifida
This head shape resultin gfrom flattening of the frontal bone.
Flattened cerebellum
ANSWERS SET A+
✔✔15-16 weeks - ✔✔For best results, the optimal gestational age for karyotyping by
amniocentesis is?
✔✔Karyotyping - ✔✔This discribes the number of chromosomes and what they look like
under a microscope?
✔✔Autosomal Dominant - ✔✔A disorder that is caused by the presence of only one
defective gene is?
✔✔Chorionic Villus Sampling (CVS) - ✔✔The sample is taken from the chorion
frondosum
Provides a means of early diagnosis
The waiting period for results is shorter
Spotting is common following the procedure
✔✔10-12 weeks - ✔✔At what gestational age are chorionic villus sampling procedures
commonly performed?
✔✔X-linked Disease - ✔✔The mother must have the disease to pass it on to her
children
It is an auosomal dominant disorder
100% of all female offspring will have the disease process.
✔✔Fetal Demise - ✔✔Absence of cardiac motion for @ least 3 mins.
Diagnosis should be confirmed by 2 examiners
Spalding's sign might be present
Druel's sign might be present
✔✔Spalding's Sign - ✔✔Overlapping of the skull bones; indicates fetal death?
,✔✔Druel's Sign - ✔✔Edema of soft tissue of the head?
✔✔Robert's Sign - ✔✔Gas in the fetal abdomen?
✔✔Lithopedion - ✔✔Calcified Fetus?
✔✔Unknown causes - ✔✔The most common cause of fetal death in the 3rd trimester
is?
✔✔Chromosomal abnormalities - ✔✔The most common cause of fetal demise in 1st
trimester is?
✔✔Placental Abruption - ✔✔What condition is anindicaiton for immediate delivery, for
without it there is the risk of intrauterine demise?
✔✔Dialation & Cruettage (D&C)
Dialation & Evacuation (D&E)
Labor Induction - ✔✔Common medical interventions for the removal of retained
products of conception (RPOC)?
✔✔Associated with RPOC - ✔✔2 weeks postpartum with heavy bleeding.
Complex homogenous mass within endometrium with a + urine choriogonadotropin
(UCG).
Echogenic mass in the cervix with a +UCG.
Acoustic shadowing from bony structures within utern cavity.
✔✔Banana Sign - ✔✔This shape of the cerabellum is seen with nerual tube defects and
Arnold-Chiari Malformaiton?
✔✔Lemon Sing - ✔✔This shape of the head denotes the scalloping (overlapping frontal
bones) which make the cross section of the head appear in this shape rather than oval?
✔✔Holoprosencephaly - ✔✔Fetal forebrain failes to develope into 2 hemispheres.
Proboscis
Cyclopia
Fused thalami
✔✔Anencephaly - ✔✔The most common neural tube defect, absence of all or part of
the brain?
✔✔Encephaloceles - ✔✔Usually found in the occipital region, sac-like protrusions of
part of the brain through opening in the skull.
, ✔✔Hydrocephalus - ✔✔"Water on the brain" Abnormal accumulation of cerebrospinal
fluid in the ventricles or cavities of the brain? Can cause "dangling" or "drooping" chorid
plexus.
✔✔Microcephaly - ✔✔Abnormally small head, can mimic anencephaly, but has crainal
bones.?
✔✔Acrania - ✔✔When no cranial bones are present?
✔✔Dandy-Walker Malformation - ✔✔The presents of hydrocephalus, a posterior fossa
cyst, agenesis of corpus callosum and enlarged 4th ventrical.
✔✔Ventriculomegaly - ✔✔Dilation of the ventricular system without enlargement of the
cranium, caused by hydrocephalus?
✔✔Trisomy 13 (Patau Syndrome) - ✔✔The presents of Holoprosencephaly,
chromosomal condition associated with sever intellectual disability and physical
abnormalities, cells in the body contain extra genetic material from chromosome 13, this
abnormality increased with maternal age?
✔✔Holoprosencephaly - ✔✔Results from abnormal cleavage of the fetal forebrain?
✔✔Macrosomia - ✔✔Frequently associated with dibetic mother
the fetal head and abdomen are enlarged
Birth weight of 4000-4500g (8lb 13oz to 9lb 15oz)
✔✔Trisomy 18 (Edward's Syndrome) - ✔✔The 2nd most common Trisomy disorder. A
genetic disorder where a person has a 3rd copy of the material from chromosome 18
instead of the ususal 2 copies. Meiotic disjunction (error in cell division), more life
threatening in the early months/years of life, can live to 20-30's with assistance, usually
imcompatable with life.
✔✔Trisomy 21 (Down's Syndrome) - ✔✔1st most common trisomy, baby has 3 of the
21 chromosomes.
47 chromosomes instead of 46?
✔✔Triploidy - ✔✔a rare lethal chromosome abnormality caused by the presents of an
entire extra set of chromosomes? (69 instead of 46)
✔✔Lemon Sign - ✔✔Assocated with spina bifida
This head shape resultin gfrom flattening of the frontal bone.
Flattened cerebellum
