ARDMS Obstetrics || update|COMPLETE MOST TESTED
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
What is the first trimester risk sonographic examination also called? - (ANSWERS)The nuchal
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translucency examination
What does the nuchal translucency examination measure? - (ANSWERS)1. Measurement of the
nuchal translucency
2. CRL (Crown-Rump Length)
3. Visualization of the fetal nasal bone
What does the standard obstetric sonography examination evaluate? - (ANSWERS)1.
Gestational age by fetal biometry
2. Fetal number
3. Placental position
4. Cardiac activity
5. AFI (Amniotic Fluid Index)
6. Fetal anatomic survey
Define gravidity - (ANSWERS)The number of pregnancies
Define parity - (ANSWERS)A numeric system that describes all possible pregnancies
What are the numbers representing in the parity numeric system? - (ANSWERS)1. Full term
pregnancies
2. Premature births and stillborns
3. Miscarriages or termination
4. Living children
What is the standard way to date a pregnancy? - (ANSWERS)LMP (Last Menstrual Period)
Pregnancy is divided into how many trimesters? - (ANSWERS)3
How long is the first trimester? - (ANSWERS)From beginning of the pregnancy to 13 weeks and
6 days.
How long is the second trimester? - (ANSWERS)From 14 weeks to 26 weeks and 6 days.
How long is the third trimester? - (ANSWERS)Begins at 27 weeks gestation until term.
What is Nagele's rule? - (ANSWERS)EDD (Estimated Due Date) = 3 months from LMP + 7 days
What fetal biometry is used in the estimate in fetal weight? - (ANSWERS)AC (Abdominal
Circumference)
,ARDMS Obstetrics || update|COMPLETE MOST TESTED
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
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What is conceptual age also known as? - (ANSWERS)Embryonic age
What is conceptual age? - (ANSWERS)With conception as the first day of pregnancy
What is gestational age? - (ANSWERS)Considers the first day of the last menstrual period as the
beginning of gestation
What is gestational age also known as? - (ANSWERS)Menstrual age
What is the conceptus called during the implantation process? - (ANSWERS)A zygote
What is the zygote called from the implantation to 10 weeks? - (ANSWERS)An embryo
What is the embryo called after the 10 weeks? - (ANSWERS)A fetus
What is the cell division process of a zygote? - (ANSWERS)1.Rapid cellular division forms the
16-cell morula
2.Further division brings the morula to the blastocyst stage
3.The blastocyst contains trophoblastic calls.
4.The trophoblastic cells begin to secrete hcg
True or False
Hcg levels plateau and decline while normal gestation continues. - (ANSWERS)True
Increased hcg levels can be used s a screening marker for Down syndrome during the first and
second trimester.
What does the anechoic center is the first trimester represent? - (ANSWERS)Chorionic cavity
What does the echogenic rim surrounding the chorionic cavity represent in the first trimester
ultrasound? - (ANSWERS)Desidual reaction
What is the first structure seen in the intragestational sac? - (ANSWERS)The secondary yolk sac
What are the functions of the secondary yolk sac? - (ANSWERS)1. Provision of nutrients to the
embryo
2. Hematopoiesis (the formation of blood or of blood cells)
3. Development of the embryonic endoderm
What should a talk sac NOT exceed? - (ANSWERS)6mm
*Enlarged yolk sacs may have threatening outcomes
, ARDMS Obstetrics || update|COMPLETE MOST TESTED
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
!@#$$$$$$$$$$%
True or False
The number of yolk sacs are not consistent with the number of amnion membranes -
(ANSWERS)False
It is very consistent with the number amnion membranes
When is the yolk sac reabsorbed and never seen again? - (ANSWERS)12 weeks
Define chorioamniotic fusion - (ANSWERS)Fusion of the membranes
When does chorioamniotic fusion occur? - (ANSWERS)14-15 weeks
What creates the yolk stalk? - (ANSWERS)Narrowing between the embryo and the yolk sac
The dorsal portion of the yolk sac is incorporated into the embryo and gives rise to what
structures? - (ANSWERS)-Foregut, midgut, and hindgut
-Entire gestational tract
-Liver
-Biliary tree
-Pancreas
What are the three primary vesicles within the fetal brain? - (ANSWERS)- Prosencephalon
- Mesencephalon
- Rhombencephalon
What does the rhombencephalon divide into? - (ANSWERS)- Metencephalon (Cephalic portion)
- Myelencephalon (Caudal portion)
What appears in the 4-5 week of gestation? - (ANSWERS)The gestational sac
What appears in the 5th week of gestation? - (ANSWERS)Yolk sac
What is seen in the 5.5-6 weeks of gestation? - (ANSWERS)Fetal heartbeat
What is two structures are seen sonographically in the 7.5 weeks of gestation? - (ANSWERS)-
Spine
-Lower limbs
When are the upper limbs seen sonographically? - (ANSWERS)8 weeks
When are the the body movements and midline falx seen? - (ANSWERS)9 weeks
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
What is the first trimester risk sonographic examination also called? - (ANSWERS)The nuchal
!@#$$$$$$$$$$%
translucency examination
What does the nuchal translucency examination measure? - (ANSWERS)1. Measurement of the
nuchal translucency
2. CRL (Crown-Rump Length)
3. Visualization of the fetal nasal bone
What does the standard obstetric sonography examination evaluate? - (ANSWERS)1.
Gestational age by fetal biometry
2. Fetal number
3. Placental position
4. Cardiac activity
5. AFI (Amniotic Fluid Index)
6. Fetal anatomic survey
Define gravidity - (ANSWERS)The number of pregnancies
Define parity - (ANSWERS)A numeric system that describes all possible pregnancies
What are the numbers representing in the parity numeric system? - (ANSWERS)1. Full term
pregnancies
2. Premature births and stillborns
3. Miscarriages or termination
4. Living children
What is the standard way to date a pregnancy? - (ANSWERS)LMP (Last Menstrual Period)
Pregnancy is divided into how many trimesters? - (ANSWERS)3
How long is the first trimester? - (ANSWERS)From beginning of the pregnancy to 13 weeks and
6 days.
How long is the second trimester? - (ANSWERS)From 14 weeks to 26 weeks and 6 days.
How long is the third trimester? - (ANSWERS)Begins at 27 weeks gestation until term.
What is Nagele's rule? - (ANSWERS)EDD (Estimated Due Date) = 3 months from LMP + 7 days
What fetal biometry is used in the estimate in fetal weight? - (ANSWERS)AC (Abdominal
Circumference)
,ARDMS Obstetrics || update|COMPLETE MOST TESTED
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
!@#$$$$$$$$$$%
What is conceptual age also known as? - (ANSWERS)Embryonic age
What is conceptual age? - (ANSWERS)With conception as the first day of pregnancy
What is gestational age? - (ANSWERS)Considers the first day of the last menstrual period as the
beginning of gestation
What is gestational age also known as? - (ANSWERS)Menstrual age
What is the conceptus called during the implantation process? - (ANSWERS)A zygote
What is the zygote called from the implantation to 10 weeks? - (ANSWERS)An embryo
What is the embryo called after the 10 weeks? - (ANSWERS)A fetus
What is the cell division process of a zygote? - (ANSWERS)1.Rapid cellular division forms the
16-cell morula
2.Further division brings the morula to the blastocyst stage
3.The blastocyst contains trophoblastic calls.
4.The trophoblastic cells begin to secrete hcg
True or False
Hcg levels plateau and decline while normal gestation continues. - (ANSWERS)True
Increased hcg levels can be used s a screening marker for Down syndrome during the first and
second trimester.
What does the anechoic center is the first trimester represent? - (ANSWERS)Chorionic cavity
What does the echogenic rim surrounding the chorionic cavity represent in the first trimester
ultrasound? - (ANSWERS)Desidual reaction
What is the first structure seen in the intragestational sac? - (ANSWERS)The secondary yolk sac
What are the functions of the secondary yolk sac? - (ANSWERS)1. Provision of nutrients to the
embryo
2. Hematopoiesis (the formation of blood or of blood cells)
3. Development of the embryonic endoderm
What should a talk sac NOT exceed? - (ANSWERS)6mm
*Enlarged yolk sacs may have threatening outcomes
, ARDMS Obstetrics || update|COMPLETE MOST TESTED
QUESTIONS AND VERIFIED ANSWERS (100% Correct
solutions)| GET IT RIGHT!! | ALREADY GRADED A+
!@#$$$$$$$$$$%
True or False
The number of yolk sacs are not consistent with the number of amnion membranes -
(ANSWERS)False
It is very consistent with the number amnion membranes
When is the yolk sac reabsorbed and never seen again? - (ANSWERS)12 weeks
Define chorioamniotic fusion - (ANSWERS)Fusion of the membranes
When does chorioamniotic fusion occur? - (ANSWERS)14-15 weeks
What creates the yolk stalk? - (ANSWERS)Narrowing between the embryo and the yolk sac
The dorsal portion of the yolk sac is incorporated into the embryo and gives rise to what
structures? - (ANSWERS)-Foregut, midgut, and hindgut
-Entire gestational tract
-Liver
-Biliary tree
-Pancreas
What are the three primary vesicles within the fetal brain? - (ANSWERS)- Prosencephalon
- Mesencephalon
- Rhombencephalon
What does the rhombencephalon divide into? - (ANSWERS)- Metencephalon (Cephalic portion)
- Myelencephalon (Caudal portion)
What appears in the 4-5 week of gestation? - (ANSWERS)The gestational sac
What appears in the 5th week of gestation? - (ANSWERS)Yolk sac
What is seen in the 5.5-6 weeks of gestation? - (ANSWERS)Fetal heartbeat
What is two structures are seen sonographically in the 7.5 weeks of gestation? - (ANSWERS)-
Spine
-Lower limbs
When are the upper limbs seen sonographically? - (ANSWERS)8 weeks
When are the the body movements and midline falx seen? - (ANSWERS)9 weeks
