Lesson 28: Fetal Soft Markers

Question 1

True or False: Fetal soft markers are abnormalities

Answer 1

False- they are findings that are indicative of an increased risk of aneuploidy

Question 2

Risks of aneuploidy include:
______ Nuchal thickness ( greater than __ mm)
Ventriculomegaly greater than _____ mm
____ or ____ nasal bone
Intracardiac focus that is _____
Cysts in the ______ ______
Echogenic _____
and a femur that is _____ compared to the foot

Answer 2

Increased
6mm
10mm
Hypotrophic or absent
Echogenic
Choroid plexus
Bowel
short

Question 3

Fetal pyelectasis is the dilation of the _____ ______. The AP diameter greater or equal to ____ mm

Answer 3

Renal pelvis
5 mm

Question 4

Non Chromosomal Linked risk factors include:
1)
2)
3)

Answer 4

1) Fetal pyelectasis > 5mm
2) Single UA
3) Enlarged CM

Question 5

Nuchal Index is calculated by : ________ mm divided by _____ mm

Answer 5

Nuchal thickness / BPD

Question 6

From 16-18 weeks, NT of ___ mm is significant
While at 18-24 weeks, NT of ___ mm is significant

Answer 6

5 mm
6 mm

Question 7

Echogenic bowel should only be reported if in these grades

Answer 7

2 and 3

Question 8

Choroid plexus cysts are reported when greater or equal to ____ mm

Answer 8

3 mm

Question 9

An enlarged CM would be greater or equal to __ mm and measure from ___ to ___

Answer 9

10 mm
Anterior to Posterior

Question 10

Femur/Foot ratio that is less or equal to ____ indicated risk of trisomy 21.

Answer 10

0.9