OB GYN Board Exam All Answers Correct
When the morula enters the uterine cavity what does it become? ✔️Blasocyst
By what week does the anion and chorion fuse? ✔️Week 12
If any longer than 16 wks time then chromosomal abnormalities may be present
At what CRL should cardiac activity be identified? ✔️5mm
6wks gestation
How many weeks should a yolk sac be identified? ✔️5.5 wks
How many weeks should a gestational sac be visualized? ✔️4 wks
The mean sac diameter in a normal IUP will demonstrate how much of an increase in size per day until
the 10th week of gestation? ✔️1mm per day
Implantation of the fertalized egg occurs on what day? ✔️20-23
What week does the neural tube normally close? ✔️week 6
What MSD should demonstrate a yolk sac? ✔️>8mm
What is the most common birth defect? ✔️CHD
Can you see an increased nuchal thickness with CHD? ✔️Yes
, What are the 4 types of ASD? ✔️1. Primun
2. Secundum
3. Venosus
Which ASD is closest to the valves? ✔️Primun
Is heterozygous achrondoplasia lethal? ✔️No
No pulmonary hypoplasia
Is homozygous achondroplasia lethal? ✔️Yes
Shortened ribs and pulmonary hypoplasia
What is prune belly also known as? ✔️Eagle Barrett Syndrome
What is iniencephaly? ✔️Iniencephaly is a rare neural tube defect resulting in:
- occipital bone defect
- partial or total absence (rachischisis) of cervico-thoracic vertebrae
- fixed fetal head retroflexion "star-gazer" appearance
Will you have polyhydraminos or oligohydraminos with spina bifida? ✔️polydraminos
What type of truncus arteriosus is most common? ✔️type one
How do the vessels appear as they exit the heart is transposition of the great arteries? ✔️parallel
When the morula enters the uterine cavity what does it become? ✔️Blasocyst
By what week does the anion and chorion fuse? ✔️Week 12
If any longer than 16 wks time then chromosomal abnormalities may be present
At what CRL should cardiac activity be identified? ✔️5mm
6wks gestation
How many weeks should a yolk sac be identified? ✔️5.5 wks
How many weeks should a gestational sac be visualized? ✔️4 wks
The mean sac diameter in a normal IUP will demonstrate how much of an increase in size per day until
the 10th week of gestation? ✔️1mm per day
Implantation of the fertalized egg occurs on what day? ✔️20-23
What week does the neural tube normally close? ✔️week 6
What MSD should demonstrate a yolk sac? ✔️>8mm
What is the most common birth defect? ✔️CHD
Can you see an increased nuchal thickness with CHD? ✔️Yes
, What are the 4 types of ASD? ✔️1. Primun
2. Secundum
3. Venosus
Which ASD is closest to the valves? ✔️Primun
Is heterozygous achrondoplasia lethal? ✔️No
No pulmonary hypoplasia
Is homozygous achondroplasia lethal? ✔️Yes
Shortened ribs and pulmonary hypoplasia
What is prune belly also known as? ✔️Eagle Barrett Syndrome
What is iniencephaly? ✔️Iniencephaly is a rare neural tube defect resulting in:
- occipital bone defect
- partial or total absence (rachischisis) of cervico-thoracic vertebrae
- fixed fetal head retroflexion "star-gazer" appearance
Will you have polyhydraminos or oligohydraminos with spina bifida? ✔️polydraminos
What type of truncus arteriosus is most common? ✔️type one
How do the vessels appear as they exit the heart is transposition of the great arteries? ✔️parallel
