OB - Module 2

Question 1

When does spina bifida occur?

Answer 1

4th week

Question 2

When can you see the heart beat?

Answer 2

7th week

Question 3

When are the finger/toes formed?

Answer 3

8th week

Question 4

End of embryonic period

Answer 4

All structures are fully differentiated but are not fully functional. This is when they are most vulnerable to teratogens

Question 5

When is heart function and fetal circulation complete?

Answer 5

8th week

Question 6

When do reproductive organs differentiate?

Answer 6

7th week

Question 7

When do the heart chambers form?

Answer 7

6th week

Question 8

What does the ductus venosus do?

Answer 8

Bypass the liver

Question 9

What does the ductus arteriosus do?

Answer 9

Bypass around the pulmonary vessels (lungs)

Question 10

What does the foramen ovale do?

Answer 10

Hole between left/right atrium

Question 11

When can you hear heart sounds?

Answer 11

Weeks 9-12 with a doppler

Question 12

When do the kidneys produce (practice) making urine?

Answer 12

Weeks 9-12

Question 13

When is the sucking/swallowing reflex apparent?

Answer 13

Weeks 13-19

Question 14

When do mothers first feel the baby’s fluttering movement?

Answer 14

Weeks 13-19. Most mothers don’t feel it until weeks 18-20

Question 15

When does lanugo and vernix develop?

Answer 15

Weeks 17-23

Question 16

When can the fetus begin to hear?

Answer 16

Weeks 17-23

Question 17

When are major organs functional WITH ASSISTANCE?

Answer 17

Weeks 24-27

Question 18

Amniocentesis

Answer 18

Measuring 20mL of amniotic fluid from the amniotic sac. 2:1 LS ratio is ideal. chromosome abnormalities and hemolytic diseases. Done after 15 weeks and takes 4 days to 2 weeks for results to come back. LONG

Question 19

When does lanugo fall off and amniotic fluid decrease?

Answer 19

Weeks 32-36

Question 20

When is full term?

Answer 20

38-40 weeks

Question 21

When are all organs/body systems mature?

Answer 21

Weeks 38-40

Question 22

When are the majority of birth defects occur?

Answer 22

Week 8

Question 23

What is the purpose of Meconium in weeks 13-19?

Answer 23

Keep intestines open and not grow together

Question 24

When are the alveoli in the lungs complete?

Answer 24

Week 24

Question 25

When do most preterm babies survive?

Answer 25

After Week 28

Question 26

When is post maturity?

Answer 26

After Week 42

Question 27

When does placenta development occur?

Answer 27

3rd week of conception

Question 28

What is genetic counseling?

Answer 28

Helps patients understand disorders and risks that fetus may have. At this point they can choose to abort. DO NOT GIVE OPINION, let them make their own decision.

Question 29

What is nuchal translucency?

Answer 29

An ultrasound that examines subcutaenous edema in the neck around 10-14 weeks.

Question 30

What is doppler flow assessment?`

Answer 30

Assesses fetal blood flow and velocity of blood at 15 weeks of gestation.

Question 31

What is Alpha-fetal protein screening?

Answer 31

Drawing mother’s blood and check alpha serum protein. Low=Abnormal chromosome, High=Neural tube defect. ONLY FOR SCREENING. Must have other tests to confirm. (ultrasound)

Question 32

What does a Chroionic villus sampling do?

Answer 32

Detects chromosomal and genetic problems and can be done as early as 10 weeks. Recommended for high risk patients