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ARDMS OB/GYN Exam & Obstetrics Practice Test 2025 | Study
Guide, Sample Questions, and Certification Prep COMPLETE
300 QUESTIONS AND CORRECT DETAILED ANSWERS
Description
ARDMS OB/GYN exam 2025
ARDMS obstetrics and gynecology practice test
ARDMS OB/GYN study guide PDF
ARDMS OB/GYN exam questions and answers
How to pass ARDMS OB/GYN exam
ARDMS OB/GYN practice exam free
ARDMS OB/GYN sonography review
ARDMS obstetrics ultrasound exam prep
Subchorionic lesions and cystic or hypoechoic areas immediately under the chorionic membrane
adjacent to the fetal surface of the placenta are typically acute or chronic areas of - ANSWER-
Thrombus
Are subchorionic lesions and cyst a significant finding in terms of the placenta? - ANSWER-No they are
insignificant.
Sonographic findings of subchorionic thrombotic lesions - ANSWER-Echogenic focus beneath the
chorionic plate
Sonographic findings of subchorionic cystic lesions - ANSWER-Well circumscribed, anechoic areas
beneath the chorionic plate
,2|Page
Most hypoechoic or cystic areas in the mid placenta are due to - ANSWER-Intervillous thrombus in the
space between the fetal and the maternal sides of the placenta.
Early in the placenta hemorrhagic process, flow may be observed within these spaces as hypoechoic
areas mid placenta and may be termed - ANSWER-Maternal lakes
Septal cyst placenta - ANSWER-Is a rare mid placental cystic structure; it is a cyst that forms between
cotyledons of the placenta.
Sonographic signs of mid placental lesions are - ANSWER-Maternal lakes and intervillous thrombosis
Itervellous thrombosis - ANSWER-
Name in order from least significant to most significant cystic or hypoechoic lesions in the placenta -
ANSWER-1. Subchorionic lesions 2. Mid placental lesions 3.basal plate lesions
A circumvallate placenta can only be demonstrated during what portion of pregnancy? - ANSWER-Mid
second trimester
Early in pregnancy, the entire surface of the gestational sack is covered with the ViLLI, as the pregnancy
progresses, the VEILLi usually regress over most of the surface of the sac, and that remains becomes the
placenta. If this regression does not occur, the placenta may cover the entire surface of the sack, if it is
patchy, there may be two or more separate areas of placenta formation. And either case, this is called
what? - ANSWER-Placenta membranacea
Placenta membranacea - ANSWER-Fetal membranes covered by chorionic villi due to failure of chorion
differentiation into the chorion laeve and chorion frondosum
Succenturiate lobe - ANSWER-Accessory lobe of placenta located away from the main placenta body. It is
connected to the main placenta via large blood vessels That course through the membranes that
accompany it
,3|Page
Bipartite lobe - ANSWER-Is one that is divided into two approximately equal size lives in is sometimes
called but I bilobed placenta
Annular placenta - ANSWER-A ring shaped placenta that attaches circumferentially to the myometrium.
Between succentruriateblobes, bipartite placenta, and annular placenta which types of placentas are
seen on ultrasound and which are not? - ANSWER-Succenturiateblobes and bipartite placentas are seen
on ultrasound. And annular placenta is not seen on ultrasound.
Sonographic findings of succenturiateblobes and bipartite placentas - ANSWER--two masses of placenta
tissue that appear unconnected. -Color Doppler imaging will show robust flow in the blood vessels that
vascularize the accessory lobe. - when the lines are of equal size, the primary lobe can be identified by
the presence of the umbilical cord insertion on its chorionic surface.
After 33 weeks, more that 50% of placentas contain some degree of calcification. - ANSWER-Calicifation
is a normal part of placental aging ( fact card)
Where are calcifications usually found on the placenta? - ANSWER-At the base of the placenta, in the
septa, and in the subchorionic and perivillous spaces.
Calcification of the placenta is more common in women with what? - ANSWER--low parity-smoke
cigarettes-mothers who have thrombotic disorders and are on anticoagulants such as heparin or aspirin
therapy. Coumadin crosses placenta discontinued first trimester due to fetal abnormalities correlation
Calcifications in a grade 3 placenta deposited around the periphery of several cotyledons. - ANSWER-
Subchorionic hematoma - ANSWER-bleeding btw the endometrium and the gestational sac.
- Pts are managed expectantly until symptoms resolve or additional findings develop
Three subchorionic cysts - ANSWER-
, 4|Page
Severely irregular marginated hypoechoic maternal lakes - ANSWER-
Where are cystic lesions most significant on the placenta? - ANSWER-Areas at the placental myometrial
interface are more significant
Hypoechoic or cystic areas at the placental myometrial interface are more significant. These may
represent what? - ANSWER-Retroplacental hematomas or areas of abruption
Maternal basal plate infarction - ANSWER-A rare condition that produces massive blood and fibrin
deposition that extends into the intervillous space.
If blood collections deep to the placenta are large enough, covering 30-40% of the placenta,?what might
occur? - ANSWER-Ingredients, fetal death, infarction of the deep portion of the placenta
How many arteries and veins are in the umblical cord? - ANSWER-2 arteries and one vein
The umbilical cord vessels are the extension of what? - ANSWER-Of the fetal internal iliac arteries and
course along the inferolateral aspect of the fetal urinary bladder, exiting the anterior abdominal wall at
the level of the dome of the bladder.
The umbilical arteries carry ________. - ANSWER-They carry deoxygenated blood from the heart of the
fetus to the woman.
Is formed by myriad anastomoses game subchorionic tributaries moving oxygenated and nutrient rich
blood from the surface of the placenta to the fetus. - ANSWER-Umbilical vein
Wharton's jelly - ANSWER-A gelatinous tissue that remains when the embryonic body stalk blends with
the yolk sac within the umbilical cord.
Umbilical cord is first seen at how many weeks - ANSWER-8 weeks
ARDMS OB/GYN Exam & Obstetrics Practice Test 2025 | Study
Guide, Sample Questions, and Certification Prep COMPLETE
300 QUESTIONS AND CORRECT DETAILED ANSWERS
Description
ARDMS OB/GYN exam 2025
ARDMS obstetrics and gynecology practice test
ARDMS OB/GYN study guide PDF
ARDMS OB/GYN exam questions and answers
How to pass ARDMS OB/GYN exam
ARDMS OB/GYN practice exam free
ARDMS OB/GYN sonography review
ARDMS obstetrics ultrasound exam prep
Subchorionic lesions and cystic or hypoechoic areas immediately under the chorionic membrane
adjacent to the fetal surface of the placenta are typically acute or chronic areas of - ANSWER-
Thrombus
Are subchorionic lesions and cyst a significant finding in terms of the placenta? - ANSWER-No they are
insignificant.
Sonographic findings of subchorionic thrombotic lesions - ANSWER-Echogenic focus beneath the
chorionic plate
Sonographic findings of subchorionic cystic lesions - ANSWER-Well circumscribed, anechoic areas
beneath the chorionic plate
,2|Page
Most hypoechoic or cystic areas in the mid placenta are due to - ANSWER-Intervillous thrombus in the
space between the fetal and the maternal sides of the placenta.
Early in the placenta hemorrhagic process, flow may be observed within these spaces as hypoechoic
areas mid placenta and may be termed - ANSWER-Maternal lakes
Septal cyst placenta - ANSWER-Is a rare mid placental cystic structure; it is a cyst that forms between
cotyledons of the placenta.
Sonographic signs of mid placental lesions are - ANSWER-Maternal lakes and intervillous thrombosis
Itervellous thrombosis - ANSWER-
Name in order from least significant to most significant cystic or hypoechoic lesions in the placenta -
ANSWER-1. Subchorionic lesions 2. Mid placental lesions 3.basal plate lesions
A circumvallate placenta can only be demonstrated during what portion of pregnancy? - ANSWER-Mid
second trimester
Early in pregnancy, the entire surface of the gestational sack is covered with the ViLLI, as the pregnancy
progresses, the VEILLi usually regress over most of the surface of the sac, and that remains becomes the
placenta. If this regression does not occur, the placenta may cover the entire surface of the sack, if it is
patchy, there may be two or more separate areas of placenta formation. And either case, this is called
what? - ANSWER-Placenta membranacea
Placenta membranacea - ANSWER-Fetal membranes covered by chorionic villi due to failure of chorion
differentiation into the chorion laeve and chorion frondosum
Succenturiate lobe - ANSWER-Accessory lobe of placenta located away from the main placenta body. It is
connected to the main placenta via large blood vessels That course through the membranes that
accompany it
,3|Page
Bipartite lobe - ANSWER-Is one that is divided into two approximately equal size lives in is sometimes
called but I bilobed placenta
Annular placenta - ANSWER-A ring shaped placenta that attaches circumferentially to the myometrium.
Between succentruriateblobes, bipartite placenta, and annular placenta which types of placentas are
seen on ultrasound and which are not? - ANSWER-Succenturiateblobes and bipartite placentas are seen
on ultrasound. And annular placenta is not seen on ultrasound.
Sonographic findings of succenturiateblobes and bipartite placentas - ANSWER--two masses of placenta
tissue that appear unconnected. -Color Doppler imaging will show robust flow in the blood vessels that
vascularize the accessory lobe. - when the lines are of equal size, the primary lobe can be identified by
the presence of the umbilical cord insertion on its chorionic surface.
After 33 weeks, more that 50% of placentas contain some degree of calcification. - ANSWER-Calicifation
is a normal part of placental aging ( fact card)
Where are calcifications usually found on the placenta? - ANSWER-At the base of the placenta, in the
septa, and in the subchorionic and perivillous spaces.
Calcification of the placenta is more common in women with what? - ANSWER--low parity-smoke
cigarettes-mothers who have thrombotic disorders and are on anticoagulants such as heparin or aspirin
therapy. Coumadin crosses placenta discontinued first trimester due to fetal abnormalities correlation
Calcifications in a grade 3 placenta deposited around the periphery of several cotyledons. - ANSWER-
Subchorionic hematoma - ANSWER-bleeding btw the endometrium and the gestational sac.
- Pts are managed expectantly until symptoms resolve or additional findings develop
Three subchorionic cysts - ANSWER-
, 4|Page
Severely irregular marginated hypoechoic maternal lakes - ANSWER-
Where are cystic lesions most significant on the placenta? - ANSWER-Areas at the placental myometrial
interface are more significant
Hypoechoic or cystic areas at the placental myometrial interface are more significant. These may
represent what? - ANSWER-Retroplacental hematomas or areas of abruption
Maternal basal plate infarction - ANSWER-A rare condition that produces massive blood and fibrin
deposition that extends into the intervillous space.
If blood collections deep to the placenta are large enough, covering 30-40% of the placenta,?what might
occur? - ANSWER-Ingredients, fetal death, infarction of the deep portion of the placenta
How many arteries and veins are in the umblical cord? - ANSWER-2 arteries and one vein
The umbilical cord vessels are the extension of what? - ANSWER-Of the fetal internal iliac arteries and
course along the inferolateral aspect of the fetal urinary bladder, exiting the anterior abdominal wall at
the level of the dome of the bladder.
The umbilical arteries carry ________. - ANSWER-They carry deoxygenated blood from the heart of the
fetus to the woman.
Is formed by myriad anastomoses game subchorionic tributaries moving oxygenated and nutrient rich
blood from the surface of the placenta to the fetus. - ANSWER-Umbilical vein
Wharton's jelly - ANSWER-A gelatinous tissue that remains when the embryonic body stalk blends with
the yolk sac within the umbilical cord.
Umbilical cord is first seen at how many weeks - ANSWER-8 weeks
