Umbilical Cord Part 1
36 Questions
| Attempts: 172
Questions and Answers
- 1.The umbilical cord is first visible sonographically at approximately ___(#) weeks gestation and appears as a __________, ____________ structure.
- 2.The umbilical cord normally contains two _____________ and one ______________, both surrounded by ________________ ________________.
- 3.Wharton's jelly is a gelatinous ______________ ______________ within the umbilical cord.
- 4.It protects the umbilical vessels from being ______________ or _______________. It also acts as a ________________.
- 5.The umbilical vein carries __________________ blood from ______________ to _______________
- A.
Oxygenated, fetus, placenta
- B.
Deoxygenated, fetus, placenta
- C.
Oxygenated, placenta, fetus
- 6.__________ umbilical artery(ies) carry __________________ blood from the ______________ to the _______________.
- A.
Two, oxygenated, fetus, placenta
- B.
Two, deoxygenated, fetus, placenta
- C.
One, deoxygenated, placenta, fetus
- 7.The cord usually attains a final length of ...
- A.
50-60 cm at 28 weeks
- B.
45-55 cm at 35 weeks
- C.
20-30 cm at 25 weeks
- 8.Short cords are usually associated with ____________ ____________ defects.
- 9.Diameter of cord is normally less that ____(#) cm
- 10.Unusually long cord is associated with...
- A.
Prolapse
- B.
Abdominal wall defects
- C.
Nuchal cord
- D.
Cord knots
- E.
Oligohydramnios
- 11.The umbilical cord is best visualized in mid-_____________ trimester and early ______________ trimester, when amniotic fluid is at its _____________.
- 12.Due to the extreme length of the cord is is UNLIKELY to scan it in its entirety.
- A.
True
- B.
False
- 13.It is not so important to visualize the placental insertion site of the cord, as long as the entry site into the fetus is seen.
- A.
True
- B.
False
- 14.Visualization of the cord's insertion into the fetus helps to rule out ______________.
- 15.The presence of _________ vessels within the cord should be documented.
- 16.Check all abnormalities that should be noted while scanning the umbilical cord... Any abnormalities in cord size, position, or abnormal attachment sites to the placenta should be noted
- A.
Cord size
- B.
Position
- C.
Abnormal attachment to placenta
- 17.Another method of visualizing the umbilical cord is to use ______________ to look for two arteries as they coarse around the fetal _____________.
- 18.What should be documented sonographically?
- A.
Number of vessels
- B.
Cord insertion into fetal abdomen
- C.
Cord insertion into placenta
- D.
Any abnormal attachments
- 19.Transverse images through the cord reveal ___________ circles, representing the larger ___________ and __________ smaller ____________.
- 20.Longitudinal images reveal a series of ________________ linear echoes within the amniotic fluid. When several portions of the cord are folded on top of one another a "__________ ________ __________" appearance is seen.
- 21.Single umbilical artery, aka ___________ ______________ ______________,
- 22.What is the most common abnormality of the umbilical cord, seen in approximately 1% of all pregnancies.
- 23.The cause of single umbilical artery is probably _____________ of a previous normal artery.
- 24.Pre-natal diagnosis of SUA should prompt examination for other ____________.
- 25.Currently, there is no definite correlation between SUA and any specific type or pattern of anomalies.
- A.
True
- B.
False
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