OBGYN Flashcards
Choose the quantitative pregnancy test
a) thyroxin
b) progesterone
c) serum
d) urine
c) serum
Name the solid ball of developing cells which occur after fertilization
Morula
What hormone is secreted by both the syncytiotrophoblast and placenta
hCG
What process allows for spermatic penetration of the ovum
Acrosome disintegration
Where does implantation of the embryo occur
Endometrium
A patient presents as small for gestational age with a known LMP 10 weeks ago. The sonographic exam reveals a gestational sac equivalent to a 6 week gestation. Select the most likely differential
a) Incomplete abortion
b) Miscarriage
c) Blighted Ovum
c) Blighted ovum
Select the sonographic findings that increase suspicion of a choriocarcinoma
a) soft tissue mass filling the uterine cavity
b) normal fetus and placenta with a cystic vesicular portion
c) hyperechoic shadowing mass within the myometrium
d) mass invasion through the uterine myometrium to the serosa with hypoechoic liver lesions
d)
What describes an oocyte without maternal chromosomes resulting in proliferation of swollen chorionic villi and the absence of identifiable embryonic structures
Complete hydatidiform mole
What sonographic finding in the uterus is made up of bleeding from the decidulized endometrium
Pseudosac
What is the discriminatory cutoff for b-hCG
Above 1,500 to 2,500
What portion of the fallopian tube has the highest incidence of ectopic gestations
Ampullary
Which type of ectopic pregnancy implants on previous cearean scars
Intramural
What measurement from the frontal to the occipital bone is obtained at the level of the thalami
Occipito-frontal diameter (OFD)
Which cranial bones are the landmarks for measurement of the BPD
Parietal bones
What is the most common fetal ratio parameter
Head circumference/ abdominal circumference (HC/AC)
What portion of the humerus does the sonographer measure to obtain the length
Ossesous diaphysis
Choose the maternal factor that results in delayed placental maturation of a 5 cm placenta
a) Rh dieases
b) Gestational diabetes
c) Syphillis
d) Choriooangioma
b) Gestational diabetes
Decidual formation defect with abnormal placental attachment to the uterine wall describes
Placenta accreta
Which of the following describes the sonographic characteristic of excessive Wharton’s jelly
a) small mas adjacent to abdomen
b) irregular protrusion from the cord
c) cystic dilation up to 6 cm, usually located close to the fetus
d) variably echogenic, soft tissue mass with three vessels visible
d) variably echogenic, soft tissue mass with three vessels visible
What is the chromosomal cause for a thick placenta
Triploidy
What form of placenta previa lies within 2 cm of the internal cervical os
Low-lying placenta
Select the differential for an intraplacental lesion
a) Subchorionic hemorrhage
b) Circumvallate placenta
c) Fibrin deposition
d) Vasa previa
c) Fibrin deposition
At which Carnegie stage does the brain folding begin
Stage 9
What anatomy is imaged on an axial plane at the cerebellar level
Cisterna magna
Choose the sonographic characteristic of a cephalocele
a) nuchal ligament forming a midline segment
b) macrocephaly
c) complex paracranial mass
d) located in the anterior portion of the neck
c) complex paracranial mass
What term describes dilation of the renal calices
Caliectasis
What term describes the portion of the fetus that will deliver first
Fetal presentation
What is the maximum right renal volume for a 30 week fetus
12.0 cm3
Which malformation results in failure to identify pulmonary vascular communication with color doppler
a) pulmonary sequestration
b) bronchogenic cyst
c) hirschsprungs disease
d) meconium ileus
a) pulmonary sequestration
Identify the sonographic appearance of a Type 3 CCAM
a) unilateral, 4 cm cyst with multiple outpouchings
b) unilateral cysts replacing the lower lobe of one lung
c) solid echogenic mass within the lung
d) spherical homogeneous mass resulting in a midline shift
c) solid echogenic mass within the lung
The finding of subcutaneous edema, ascites, a large spleen and liver, and a thick placenta raises suspicion for what process
Fetal hydrops
Which of the following is part of Epstein’s anomaly
a) underdeveloped left ventricle
b) tricuspid stenosis
c) right ventricular hypoplasia
d) overriding aorta
b) tricuspid stenosis
What is an abnormal opening between the right and left atrium
Atrial septal defect
What anatomy is imaged on a 4 chamber view
Interventricular septum
What heart defect has an increase in right ventricular size, a small aorta, and reversed ductus arteriosus flow
Interrupted aortic arch
What dominant category does thanatophoric dysplasia fall into
Micromelia
What sonographic findings are seen with thanatophoric dysplasia
a) heart malformations, bone fractures, radial hypoplasia
b) polydactyly, macrocepahly, hypermineralization
c) bowed long bones, wide thorax, syndactyly, rhizomelia
d) narrow thorax, curved or bowed long bones, hypomineralization
d
What scanning angle avoids artificial limb shortening when performing biometry
Perpendicular
Choose the maternal indication for performance of a fetal doppler exam
a) hypertension
b) umbilical cord anomaly
c) history of chromosomal anomaly
d) intrauterine growth retardation
a) hypertenstion
What is the normal umbilical artery waveform
Low resistance
What fetal vessel is sampled above the umbilical sinus and has a normal triphasic flow pattern
Ductus venosus
Identify the vessel with flow fluctuations and pulsations in the distressed fetus
a) SVC
b) umbilical vein
c) uterine artery
d) ductus venosus
b) umbilical vein
What fetal testing method includes the nonstress test and amniotic fluid volume
Modified biophysical profile
What first sonographically observed biophysical change is seen with fetal hypoxia
Gross fetal body movements
What is the primary factor for increased multiple births
delayed childbearing
Select the maternal complication of a multiple pregnancy
a) preterm birth
b) hypertension
c) fetal death
d) Intrauterine growth restriction
b) hypertension
In a twin gestation with a placenta on the anterior wall and a second on the posterior wall, what would be the membrane configuration
Dichorionic/diamniotic
Fetal death and the retention of the fetus can result in what type of process
Fetal papyraceus
Identify the doppler parameter which confirms the presence of an acardiac twin
a) increased flow velocities in the MCA
b) decreased resistance in umbilical cord flow
c) lack of low in the umbilical artery
d) umbilical cord flow reversal
d) umbilical cord flow reversal
Which of the following is a sonographic finding for the donor twin in the TTS pregnancy
a) hypovolemic
b) polyhydramnios
c) macrsomia
d) hydrops
a) hypovolemic
What type of placentation occurs with the division of the monozygotic twinning at day 3
dichorionic/diamniotic
Which of the following is a perinatal pathology associated with IUGR
a) hypoglycemia
b) hypertenstion
c) diabetes
d) obesity
b) hypertension
Choose the fetal cause of IUGR
a) varicella zoster
b) palcental abruption
c) preterm birth
d) sibling with IUGR
a) varicella zoster
What is the doppler finding seen with asymmetric IUGR
Increased RI in aorta
What type of cell division results in an individual with 2 genotypes
Mosaicism
What term describes a mutation caused by multiple genes
Heterogenous disorder
Select the soft sonographic marker for trisomy 21
a) low set ears
b) choroid plexus cysts
c) microcephaly
d) cleft lip
b) choroid plexus cysts
How many chromosomes are found in a gamete
23
What is the chromosome makeup of a Turner syndrome fetus
45XO
What maternal bacterial infection raises the risk of fetal hydrops
Syphilis
Immune fetal hydrops include which of the following fetal findings
a) two vessel cord
b) pericardial fluid
c) decreased PI
d) microcephaly
b) pericardial fluid
Which placental problem coexists with maternal preeclampsia
a) choriocarcinoma
b) lack of lakes
c) infarcts
d) decreased flow ratio
c) infarcts
When does Rh isoimmunization occur
At birth
Which of the following is a result of abnormal placental penetration into the myometrium
a) hemorrhage
b) chorioamnionitis
c) involution
d) atony
a) hemorrhage
What is the software program used to measure volumes
VOCAL
What term describes the display of parallel images
Tomographic
What is the surface rendering control
Gradient light
How is the uterus situated to the pelvis, bladder and rectum
Medially to the pelvis
Posterior to the bladder
Anterior to the rectum
What 3 layers is the uterus composed of
- peritoneum
- myometrium
- endometrium
The out layer of the uterus is called
Peritoneum or the serosal layer
The muscular portion of the uterus is called
Myometrium
The inner layer of the uterus is called
Endometrium
What is another name for the posterior cul-de-sac
Pouch of Douglas
The peritoneum covers the posterior surface of the uterus and the anterior surface of the rectum which is called what potential space
Posterior cul-de-sac
What is the echotexture of the myometrium
Homogenous
This type of uterus tilts forward with a 90 degree angle to the posterior vaginal wall
-This is also the most common type of uterus
Anteverted
This type of uterus the uterine corpus is flexed anteriorly on the cervix, forming a sharp angle at the cervix
Anteflexed
This type of uterus tilts backward without a sharp angle between the corpus and cervix
Retroverted
This type of uterus the uterine corpus is flexed posteriorly on the cervix, forming a sharp angle at the cervix
Retroflexed
The uterine and ovarian arteries are branches of what artery
Internal iliac (hypogastric)
In relationship to the uterus where are the ovaries located
Ovaries are located lateral in the ovarian fossa
The ovarian fossa is bound laterally but what artery and vein
Iliac artery and vein
What is the normal echo texture of the ovaries
Homogenous
What part of the fallopian tube is the narrowest portion
Isthmus
What part of the fallopian tube is the most lateral portion
Infundibulum
The purpose of this structure is to aid in fertilization and to transport the ova from the ovary to the uterus
Fallopian tube
On a sagittal view, this muscle appears as a paired long hypoechoic stripe with echogenic linear lines
Iliopsoas muscle
What is the most common uterine tumor
Fibroid
What is the most common cause of uterine enlargement in the nonpregnant female
Fibroids
What is an invasion of endometrial tissue into the the myometrium > 2 mm
Adenomyosis
What is an accumulation of blood within the vagina
Hematocolpos
What is an accumulation of blood within the uterine cavity secondary to atrophy of the endocervical canal or cervical stenosis
Hematometra
What type of ovarian mass tends to be smooth walled, well- defined, and anechoic with increased posterior acoustic enhancment
Benign cystic masses
What are the 3 most common functional cysts of the ovaries
- follicular
- corpus luteal cysts
- theca luteal
The twisiting of an ovary and its vessels resulting in occlusion of its blood supply refers to
Ovarian torsion
What hormone is normally produced by the placenta and present in the serum and urine of a pregnant woman
Beta hCG
What is any pregnancy outside the endometrial cavity called
Ectopic pregnancy
Where do most ectopic pregnancies occur
Fallopian tube
This describes blood or decidual cast in the uterine cavity mimicking a gestational sac
Pseduogestational sac
What is a coexistent intrauterine pregnancy and ectopic pregnancy called
Heterotopic
An adnexal ring like mass with increased color flow around its periphery aka ring of fire describes
Unruptured ectopic pregnancy
This refers to the space between the back of the neck and the overlying fetal skin
Nuchal translucency
A congenital lymphatic obstruction between the lymphatic and venous pathway resulting in lymphatic fluid accumulation in the lymphatic sac within the nuchal region describes
Cystic hygroma
What is the most common and benign component of gestational trophoblastic disease that may be partial or complete
Hadatidiform mole
This type of Hydatidiform mole the sono findings are an enlarged uterine cavity filled with complex echoes often resembling placental tissue with multiple cystic vesicles
Complete
This is associated with a markedly increased beta hCG and may have bilateral theca lutein cysts
Hydatidiform mole
The sono appearnace of this hydatidiform mole presents as an enlarged hydropic placenta with focal multicystic anechoic spaces replacing the normal homogenous appearance of placenta
Partial
The sono appearance of swiss cheese, snowstorm, vesicular texture, and honey comb describes
Hydatidiform mole
This describes a large >2 cm gestational sac without an embryo or yolk sac
Blighted ovum or anembryonic demise
This describes an embryo without fetal heart rate motion retained in the uterus before 20 weeks.
Missed abortion
This describes a fetus that weighs more than 4,000 g and is often a manifestation of insulin dependent diabetes mellitus
Macrosomia
This is defined by ultrasound as weight <10th percentile
Intrauterine growth restriction (IUGR)
Which of the folllowing indicates a patient who had a twin pregnancy
a) G2 P2 A2 T0
b) G4 P4 A0 T4
c) G1 P0 A0 T0
d) G3 P3 A2 T2
B
An 18 year old presents to the department with complaints of intermittent left lower quadrant pain. Though she has not missed any periods, her clinician ran a pregnancy test came up positive. The sonographic exam revealed a solid mass with calcifications and multiple small cysts in the left side apart from the uterus. What is the most likely cause for these findings
a) endometriod
b) Granulosa theca cell tumor
c) Clear cell carcinoma
d) immature teratoma
d) immature teratoma
Choose the least common malignant ovarian cancer
a) androblastoma
b) krukenberg tumor
c) arrhenoblastoma
d) choriocarcinoma
a) androblastoma
Which of the following is a tumor marker for colon, stomach, breast, or ovarian carcinomas
a) CEA
b) BRCA1/BRCA2
c) AFP
d) CA 125
a) CEA
How does the fallopian tube image in a patient with stage 2 pelvic inflammatory diease
a) hypoechoic with a cogwheel appearance
b) normal ovary
c) decreased doppler flow to a tubal structure
d) thin wall tubular structure
a) hypoechoic with a cog wheel appearance
a discrete adnexal mass with peripheral doppler flow is a sonographic sign of
Endometriosis
Cervical motion tenderness is a clinical presentation of
Pelvic inflammatory disease
What phase overlaps the menstrual phase
Proliferative phase
What is the primary sex hormone produced by the ovarian follicles
Estradiol
How long after fertilization does an embryo transfer occur
5-6 days
Which of the following is a uterine anatomic cause of infertility
a) ovarian hyperandrogenism
b) endometrial polyp
c) endometriosis
d) hydrosalpinx
b) endometrial polyp
This term describes the estimation of the quality and quantity of a womans remaining follicles
Ovarian reserve
What is the precursor to the penis and clitoris
Genital tubercle
The preembryonic phase occurs during which portion of the gestation
Weeks 1-3
A pregnancy in one uterus with a decidual reaction in a second uterus describes what congenital malformation
Didelphic uterus
Which of the following is a Class 2 mullerian duct anomaly
a) unicornuate uterus
b) bicornuate uterus
c) DES uterus
d) hypoplasia of the vagina
a) unicornuate uterus
What is the hormone that GnRH stimulates the pituitary gland to secrete
LH
What hormone resumes with a decrease in estrogen and a positive feedback loop
GnRH
What hormone is secreted from the anterior lobe of the pituitary gland
GnRH
Which of the following secretes progesterone
a) graafian follicle
b) corpus luteum
c) theca interna
d) theca externa
b) corpus luteum
What is the transitional portion of the uterus
Isthmus
In the normal bladder, echogenic urine indicates which technical error
High overall gain
What is the imaginary line that separates the true and false pelvis
Linea terminalis
Select the organ fold in the false pelvis
a) rectum
b) ovaries
c) ileum
d) bladder
c) ileum
What vessel drains directly into the left renal vein
Left ovarian vein
This doppler measurement takes the highest systolic peak minus the highest diastolic peak divided by the highest systolic peak
Pourcelot resistive index
Where does the uterine artery anastomoses with the ovarian artery
At the uterine cornua
What term defines the physiologic process of growing new vessels
Angiogneisis
Select the karytype seen with a partial mole
a) 46 XY
b) 46 XX
c) 44 OX
d) 69 XXX
d) 69 XXX
What dominant category does thanatophoric dysplasia fall into
Micromelia
What scanning angle avoids artificial limb shortening when performing biometry
Perpendicular
Describe the normal umbilical artery waveform
Low resistance
What fetal vessel is sampled above the umbilical sinus and has a normal triphasic flow pattern
Ductus venosus
What is the optimal angle of insonation to obtain a doppler tracing of the fetal MCA
34 degrees
What fetal testing method includes the nonstress test and amniotic fluid volume
Modified BPP
What is the first sonographically observed biophysical change seen with fetal hypoxia
Gross fetal body movements
What is the primary factor for increased multiple births
Delayed child bearing
Select the maternal complication of a multiple pregnancy
a) preterm birth
b) hypertension
c) fetal death
d) intrauterine growth restriction
b) hypertension
Fetal death and the retention of the fetus can result in what type of process
Fetal papyraceus
Choose the fetal cause of IUGR
a) varicella zoster
b) placental abruption
c) preterm birth
d) silbing with IUGR
a) varicella zoster