Umbilical Structures

Question 1

What does the urachus become in the adult?

Answer 1

Middle ligament of the bladder

Question 2

What to the umbilical arteries become in the adult?

Answer 2

Round ligaments of the bladder

Question 3

What does the umbilical vein become in the adult?

Answer 3

Falciform ligament

Question 4

Is an umbilicus with heat and pitting edema a surgical emergency?

Answer 4

YES

Question 5

During what time frame is a patent urachus considered congenital?

Answer 5

Less than 2 weeks of age

Question 6

When is a patent urachus considered acquired?

Answer 6

> 2 weeks of age
Usually due to infected remnants

Question 7

What size should a normal umbilical vein be on ultrasound?

Answer 7

< 1 cm on cross section

Question 8

What size should a normal umbilical artery be on ultrasound?

Answer 8

< 1.3 cm on crossection

Question 9

What size should a normal umbilical structure be on ultrasound?

Answer 9

< 2.5 cm

Question 10

When should you take a foal with a patent urachus to surgery?

Answer 10

If the duration of patency exceeds 5 days

Question 11

Which is more common, umbilical vein or umbilical artery infections?

Answer 11

Umbilical artery
Usually only one umbilical artery is infected

Question 12

Do the umbilical arteries carry oxygenated or deoxygenated blood?

Answer 12

Deoxygenated

Question 13

Does the umbilical vein carry oxygenated or deoxygenated blood?

Answer 13

Oxygenated

Question 14

When would you marsupialize an infected umbilical vein, and what does marsupialize mean?

Answer 14

If you are unable to reach healthy vein tissue, and the infection reaches the liver, you will need to marsupialize the vein.

Marsupializing is taking the end of the vein and fish mouthing it out through the body wall to create drainage.

Question 15

What is a common complication of marsupialization of umbilical veins?

Answer 15

Hernias at the site of marsupialization