OB Protocol

Question 0

After fetal position is conceptualized, sonographer determines…

Answer 0

Left and right side of fetus

Question 1

What is the suggested protocol for an OB?

Answer 1

Survey uterus, cervix, LUS, adnexa
Fetal HR
Fetal position
Placental location
AFI - 4 quadrants
Anatomy survey of fetus
Perform biometric measurements of fetus

Question 2

Why is knowing left and right side of fetus important?

Answer 2

To asses fetal anatomy and situs correctly

Question 3

How should you move through an anatomy scan?

Answer 3

Systemically from head to feet

Question 4

What are the types of fetal positions?

Answer 4

Breech
Vertex/cephalic
Oblique
Transverse

Question 5

What are the types of breech?

Answer 5

Complete
Incomplete
Frank

Question 6

Fetal stomach lies on the fetal __________ side. This can help determine left and right.

Answer 6

Left

Question 7

Fetal GB is on the __________ side and apex of the heart is pointing toward fetal __________ in relationship to stomach.

Answer 7

Right

Left

Question 8

Fetal aorta lies slightly to the __________ of midline, __________ to spine, and IVC is the the __________ of midline.

Answer 8

Left
Anterior
Right

Question 9

Roles of the placenta?

Answer 9

Permit exchange of oxygenated maternal blood with deoxygenated fetal blood

Maternal vessels coursing through posterior placenta circulates blood into placenta

Blood from fetus reaches this point through the umbilical cord

Question 10

What is PCI?

Answer 10

Placental cord insertion

Question 11

What AFI?

Answer 11

Amniotic fluid index - 4 quadrants

Allows fetus to move freely within amniotic cavity

Maintains intrauterine pressure & protects developing fetus from injury

Umbilical cord & membranes, lungs, skin, kidneys all contribute to production of amniotic fluid

Question 12

__________ Into amniotic sac accounts for most of total volume of amniotic fluid by second half if pregnancy.

Answer 12

Fetal urination

Question 13

Quality of fluid is directly related to __________.

Answer 13

Kidney function

*kidney issues will procure little to no amniotic fluid

Question 14

Amount of amniotic fluid is regulated by not only production, but also…

Answer 14

Removal of fluid by swallowing

Fluid exchange with lungs, membrane, cord

Question 15

Normal __________ is critically dependent on exchange of fluid.

Answer 15

Lung development

Question 16

Inadequate lung development may occur when there is severe __________.

Answer 16

Oligohydramnios - small or hypoplastic lungs

Question 17

When does volume of amniotic fluid increase & then slowly diminishes?

Answer 17

34th week of gestation

Question 18

When should amniotic fluid appear to surround fetus and should be readily apparent?

Answer 18

2nd & early 3rd trimester

Question 19

Normal fetal brain parenchyma appears __________ because of small size reflectors & high water content in tissue.

Answer 19

Hypoechoic

Question 20

__________ And __________ are more echogenic in the cranium.

Answer 20

Sulcus and gyrus