Sonography of Second and Third Trimester W/ Fetal
Growth Assessment(100% Verified)
What trimesters are ideal times to image fetal anatomy? correct answers 2nd and 3rd trimesters
What is the base protocol for an obstetric sonography examination? correct answers -observe
fetal viability by visualization of cardiovascular pulsations
-demonstrate presontation (fetal lie)
-demonstrate the number of fetuses
-Amniotic fluid
-Characterize the placenta
-Visualize the cervix
-Assess fetal age
What are some measurements taken during 2nd and 3rd trimester ultrasounds? correct answers
BPD
Head Circumference
FL (femur length)
HL (Humerus Length)
AC (Abdominal circumference) *fetal weight*
During Ultrasound we should examine uterus, adnexa, and cervix to exclude masses. Maternal
______________ may not be visualized during the second and third trimesters of pregnancy.
correct answers Maternal Ovaries
What should an image of the posterior fossa of the fetal head include? correct answers
Cerebellum
Cisterna Magna
nuchal skin fold
Where is the nuchal skin fold? correct answers Toward the back of the head, skin fold behind the
nape of the neck
What size should the nuchal fold not exceed? correct answers should not exceed 6mm
What echogenic structure is located within the lateral ventricles? correct answers choroid plexus
Where is the Cavum septum pellucidum located? correct answers Midline falx, small cystic
space in falx cerebri
Spinal views include what parts of the spine? correct answers C-spine 5-7vert
T-spine 12 vert
L-spine 5 vert
Sacrum (look for sacral curvature)
, When viewing transverse section of the abdomen and looking for stomach, what structures
should be in the image? correct answers Stomach
Umbilical vein
Spine
Lateral ventricles should never exceed how many mm? correct answers 10 mm
How do you measure cerebellum? correct answers From outside to outside of the "lazy 3"
What views of the fetal heart should be obtained? correct answers RVOT
LVOT
4ch
What can kidneys be mistaken for? correct answers Adrenal Glands
What does G4P2103 mean? correct answers G4= 4 pregnancies
P:
2= Full term deliveries
1= premature births
0= abortions
3= living children
To determine female genitalia what do you look for? correct answers Labia
The length of an average human pregnancy is _____ weeks beginning from the first day of the
__________. correct answers 40 weeks, LMP
Ovulatory age is approx ______ weeks as ovulation generally occurs on the 14th day of the
menstrual cycle. correct answers 38 weeks
What does EDC stand for? correct answers Estimated date of confinement (or due date)
What is Nagele's rule? correct answers According to this method, the EDC is derived by
subtracting 3 months from the LMP and adding 7 days
EDC= LMP - 3 months + 7 days
What is Menstrual age? correct answers the gestational age of the fetus determined from the
LMP
When can pregnancy be clinically detected? correct answers Approx 6-8 days after ovulation
What is fetal lie described in relation to? correct answers The maternal long axis
What types of Lie can the baby be in? correct answers Longitudinal
Transverse
Growth Assessment(100% Verified)
What trimesters are ideal times to image fetal anatomy? correct answers 2nd and 3rd trimesters
What is the base protocol for an obstetric sonography examination? correct answers -observe
fetal viability by visualization of cardiovascular pulsations
-demonstrate presontation (fetal lie)
-demonstrate the number of fetuses
-Amniotic fluid
-Characterize the placenta
-Visualize the cervix
-Assess fetal age
What are some measurements taken during 2nd and 3rd trimester ultrasounds? correct answers
BPD
Head Circumference
FL (femur length)
HL (Humerus Length)
AC (Abdominal circumference) *fetal weight*
During Ultrasound we should examine uterus, adnexa, and cervix to exclude masses. Maternal
______________ may not be visualized during the second and third trimesters of pregnancy.
correct answers Maternal Ovaries
What should an image of the posterior fossa of the fetal head include? correct answers
Cerebellum
Cisterna Magna
nuchal skin fold
Where is the nuchal skin fold? correct answers Toward the back of the head, skin fold behind the
nape of the neck
What size should the nuchal fold not exceed? correct answers should not exceed 6mm
What echogenic structure is located within the lateral ventricles? correct answers choroid plexus
Where is the Cavum septum pellucidum located? correct answers Midline falx, small cystic
space in falx cerebri
Spinal views include what parts of the spine? correct answers C-spine 5-7vert
T-spine 12 vert
L-spine 5 vert
Sacrum (look for sacral curvature)
, When viewing transverse section of the abdomen and looking for stomach, what structures
should be in the image? correct answers Stomach
Umbilical vein
Spine
Lateral ventricles should never exceed how many mm? correct answers 10 mm
How do you measure cerebellum? correct answers From outside to outside of the "lazy 3"
What views of the fetal heart should be obtained? correct answers RVOT
LVOT
4ch
What can kidneys be mistaken for? correct answers Adrenal Glands
What does G4P2103 mean? correct answers G4= 4 pregnancies
P:
2= Full term deliveries
1= premature births
0= abortions
3= living children
To determine female genitalia what do you look for? correct answers Labia
The length of an average human pregnancy is _____ weeks beginning from the first day of the
__________. correct answers 40 weeks, LMP
Ovulatory age is approx ______ weeks as ovulation generally occurs on the 14th day of the
menstrual cycle. correct answers 38 weeks
What does EDC stand for? correct answers Estimated date of confinement (or due date)
What is Nagele's rule? correct answers According to this method, the EDC is derived by
subtracting 3 months from the LMP and adding 7 days
EDC= LMP - 3 months + 7 days
What is Menstrual age? correct answers the gestational age of the fetus determined from the
LMP
When can pregnancy be clinically detected? correct answers Approx 6-8 days after ovulation
What is fetal lie described in relation to? correct answers The maternal long axis
What types of Lie can the baby be in? correct answers Longitudinal
Transverse
