OB/GYN Board Exam questions with
verified answers to pass
When the morula enters the uterine cavity what does it become? - correct answer
✔✔Blastocyst
By what week does the anion and chorion fuse? - correct answer ✔✔Week 12
If any longer than 16 wks time then chromosomal abnormalities may be present
At what CRL should cardiac activity be identified? - correct answer ✔✔5mm
6wks gestation
How many weeks should a yolk sac be identified? - correct answer ✔✔5.5 wks
How many weeks should a gestational sac be visualized? - correct answer ✔✔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? - correct answer ✔✔1mm per day
Implantation of the fertalized egg occurs on what day? - correct answer ✔✔20-23
What week does the neural tube normally close? - correct answer ✔✔week 6
, What MSD should demonstrate a yolk sac? - correct answer ✔✔>8mm
What is the most common birth defect? - correct answer ✔✔CHD
Can you see an increased nuchal thickness with CHD? - correct answer ✔✔Yes
What are the 4 types of ASD? - correct answer ✔✔1. Primun
2. Secundum
3. Venosus
Which ASD is closest to the valves? - correct answer ✔✔Primun
Is heterozygous achrondoplasia lethal? - correct answer ✔✔No
No pulmonary hypoplasia
Is homozygous achondroplasia lethal? - correct answer ✔✔Yes
Shortened ribs and pulmonary hypoplasia
What is prune belly also known as? - correct answer ✔✔Eagle Barrett Syndrome
What is iniencephaly? - correct answer ✔✔Iniencephaly is a rare neural tube defect resulting in:
- occipital bone defect
- partial or total absence (rachischisis) of cervico-thoracic vertebrae
verified answers to pass
When the morula enters the uterine cavity what does it become? - correct answer
✔✔Blastocyst
By what week does the anion and chorion fuse? - correct answer ✔✔Week 12
If any longer than 16 wks time then chromosomal abnormalities may be present
At what CRL should cardiac activity be identified? - correct answer ✔✔5mm
6wks gestation
How many weeks should a yolk sac be identified? - correct answer ✔✔5.5 wks
How many weeks should a gestational sac be visualized? - correct answer ✔✔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? - correct answer ✔✔1mm per day
Implantation of the fertalized egg occurs on what day? - correct answer ✔✔20-23
What week does the neural tube normally close? - correct answer ✔✔week 6
, What MSD should demonstrate a yolk sac? - correct answer ✔✔>8mm
What is the most common birth defect? - correct answer ✔✔CHD
Can you see an increased nuchal thickness with CHD? - correct answer ✔✔Yes
What are the 4 types of ASD? - correct answer ✔✔1. Primun
2. Secundum
3. Venosus
Which ASD is closest to the valves? - correct answer ✔✔Primun
Is heterozygous achrondoplasia lethal? - correct answer ✔✔No
No pulmonary hypoplasia
Is homozygous achondroplasia lethal? - correct answer ✔✔Yes
Shortened ribs and pulmonary hypoplasia
What is prune belly also known as? - correct answer ✔✔Eagle Barrett Syndrome
What is iniencephaly? - correct answer ✔✔Iniencephaly is a rare neural tube defect resulting in:
- occipital bone defect
- partial or total absence (rachischisis) of cervico-thoracic vertebrae
