Umbilical Cord Part 1
Questions and Answers
- 1.
The umbilical cord is first visible sonographically at approximately ___(#) weeks gestation and appears as a __________, ____________ structure.
Explanation
The umbilical cord is first visible sonographically at approximately 8 weeks gestation and appears as a straight, thick structure.Rate this question:
- 2.
The umbilical cord normally contains two _____________ and one ______________, both surrounded by ________________ ________________.
Explanation
The umbilical cord normally contains two arteries and one vein, both surrounded by Wharton's jelly. The arteries carry deoxygenated blood from the fetus to the placenta, while the vein carries oxygenated blood from the placenta to the fetus. Wharton's jelly is a gelatinous substance that surrounds and protects the blood vessels, providing cushioning and support.Rate this question:
- 3.
Wharton's jelly is a gelatinous ______________ ______________ within the umbilical cord.
Explanation
Wharton's jelly is a gelatinous substance found within the umbilical cord. It is known to be a connective tissue, which is a type of tissue that supports, connects, or separates different types of tissues and organs in the body. Connective tissue provides structural support and plays a role in various physiological functions. In the case of Wharton's jelly, it helps protect and support the blood vessels in the umbilical cord, ensuring proper circulation between the mother and the developing fetus.Rate this question:
- 4.
It protects the umbilical vessels from being ______________ or _______________. It also acts as a ________________.
Explanation
The umbilical vessels need protection from being crushed or compressed, and the cushion acts as a protective barrier for them.Rate this question:
- 5.
The umbilical vein carries __________________ blood from ______________ to _______________
- A.
Oxygenated, fetus, placenta
- B.
Deoxygenated, fetus, placenta
- C.
Oxygenated, placenta, fetus
Correct Answer
C. Oxygenated, placenta, fetusExplanation
The umbilical vein carries oxygenated blood from the placenta to the fetus. During fetal development, the placenta acts as the organ that provides oxygen and nutrients to the developing fetus. The umbilical vein is responsible for transporting the oxygenated blood from the placenta to the fetus, ensuring that the fetus receives the necessary oxygen for growth and development.Rate this question:
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- 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
Correct Answer
B. Two, deoxygenated, fetus, placentaExplanation
The umbilical arteries carry deoxygenated blood from the fetus to the placenta.Rate this question:
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- 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
Correct Answer
A. 50-60 cm at 28 weeksExplanation
The correct answer is 50-60 cm at 28 weeks. This is because the umbilical cord, which connects the fetus to the placenta, grows along with the fetus during pregnancy. By 28 weeks, the cord typically reaches a length of 50-60 cm. This allows for proper blood flow and nutrient exchange between the fetus and the mother.Rate this question:
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- 8.
Short cords are usually associated with ____________ ____________ defects.
Correct Answer
abdominal wallExplanation
Short cords are usually associated with abdominal wall defects. This means that when the cords in the body are shorter than normal, it can lead to abnormalities or malformations in the abdominal wall. These defects can include conditions such as omphalocele or gastroschisis, where the organs of the abdomen protrude through the abdominal wall. The shortened cords may not provide enough support or space for the organs to develop properly, resulting in these defects.Rate this question:
- 9.
Diameter of cord is normally less that ____(#) cm
Correct Answer
2Explanation
The diameter of a cord is normally less than 2 cm.Rate this question:
- 10.
Unusually long cord is associated with...
- A.
Prolapse
- B.
Abdominal wall defects
- C.
Nuchal cord
- D.
Cord knots
- E.
Oligohydramnios
Correct Answer(s)
A. Prolapse
C. Nuchal cord
D. Cord knotsExplanation
An unusually long cord can be associated with prolapse, nuchal cord, and cord knots. Prolapse occurs when the umbilical cord slips through the cervix before the baby, which can lead to compression and potential harm to the baby. Nuchal cord refers to the cord being wrapped around the baby's neck, which can cause complications during delivery. Cord knots can form when the cord becomes twisted and tangled, potentially restricting blood flow. These conditions can all be associated with an unusually long cord.Rate this question:
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- 11.
The umbilical cord is best visualized in mid-_____________ trimester and early ______________ trimester, when amniotic fluid is at its _____________.
Correct Answer(s)
second, third, peakExplanation
The umbilical cord is best visualized in the mid-second trimester and early third trimester, when the amniotic fluid is at its peak. During this time, the amniotic fluid provides a clear environment for ultrasound imaging, allowing for a better visualization of the umbilical cord.Rate this question:
- 12.
Due to the extreme length of the cord is is UNLIKELY to scan it in its entirety.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the given answer "True" is that the extreme length of the cord makes it unlikely to scan it in its entirety. This suggests that scanning the entire cord would be difficult or impractical due to its length.Rate this question:
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- 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
Correct Answer
B. FalseExplanation
The placental insertion site of the cord, AS WELL AS the entry site into the fetus should be visualized.Rate this question:
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- 14.
Visualization of the cord's insertion into the fetus helps to rule out ______________.
Correct Answer
omphaloceleExplanation
Visualization of the cord's insertion into the fetus helps to rule out omphalocele. This is because omphalocele is a congenital birth defect where the abdominal organs protrude through the umbilical cord opening in the abdominal wall. By visualizing the cord's insertion, it can be determined if the organs are properly contained within the abdomen or if there is an abnormality such as omphalocele.Rate this question:
- 15.
The presence of _________ vessels within the cord should be documented.
Correct Answer
three
3Explanation
The correct answer is "three, 3". The question is asking for the documentation of the presence of vessels within the cord. The answer "three, 3" suggests that there are three vessels present and they should be documented.Rate this question:
- 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
Correct Answer(s)
A. Cord size
B. Position
C. Abnormal attachment to placentaExplanation
The correct answer is Cord size, Position, Abnormal attachment to placenta. When scanning the umbilical cord, it is important to note any abnormalities in cord size, position, or abnormal attachment sites to the placenta. This could indicate potential issues with the development or function of the umbilical cord, which could affect the supply of nutrients and oxygen to the fetus. Therefore, these abnormalities should be carefully observed and documented during the scanning process.Rate this question:
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- 17.
Another method of visualizing the umbilical cord is to use ______________ to look for two arteries as they coarse around the fetal _____________.
Correct Answer(s)
color, bladderExplanation
One method of visualizing the umbilical cord is to use color to look for two arteries as they course around the fetal bladder.Rate this question:
- 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
Correct Answer(s)
A. Number of vessels
B. Cord insertion into fetal abdomen
C. Cord insertion into placenta
D. Any abnormal attachmentsExplanation
Sonographic documentation should include the number of vessels, cord insertion into the fetal abdomen, cord insertion into the placenta, and any abnormal attachments. This information is important for assessing the fetal well-being and ensuring proper attachment and blood supply between the fetus and the placenta. By documenting these factors, healthcare professionals can monitor any abnormalities or potential complications that may arise during pregnancy.Rate this question:
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- 19.
Transverse images through the cord reveal ___________ circles, representing the larger ___________ and __________ smaller ____________.
Correct Answer(s)
three, vein, two, arteries
3, vein, 2, arteriesExplanation
Transverse images through the cord reveal three circles, representing the larger vein and two smaller arteries.Rate this question:
- 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.
Correct Answer(s)
parallel, stack of coinsExplanation
Longitudinal images show parallel linear echoes within the amniotic fluid. When multiple portions of the cord are folded on top of each other, it creates a "stack of coins" appearance.Rate this question:
- 21.
Single umbilical artery, aka ___________ ______________ ______________,
Correct Answer(s)
2 vessel cord
two vessel cordExplanation
The correct answer is "2 vessel cord" or "two vessel cord". This term refers to a condition where the umbilical cord contains only two blood vessels instead of the normal three. Normally, the umbilical cord consists of two arteries and one vein, but in the case of a two vessel cord, one of the arteries is missing. This condition can sometimes be associated with certain birth defects or chromosomal abnormalities, so it is important for healthcare providers to monitor the pregnancy closely.Rate this question:
- 22.
What is the most common abnormality of the umbilical cord, seen in approximately 1% of all pregnancies.
Correct Answer(s)
Single umbilical artery
two vessel cordExplanation
The most common abnormality of the umbilical cord is a single umbilical artery, also known as a two vessel cord. This condition occurs when there is only one artery instead of the normal two arteries in the umbilical cord. It is seen in approximately 1% of all pregnancies.Rate this question:
- 23.
The cause of single umbilical artery is probably _____________ of a previous normal artery.
Correct Answer(s)
atrophyExplanation
The cause of a single umbilical artery is likely the atrophy of a previous normal artery. Atrophy refers to the shrinking or wasting away of tissue or an organ. In this case, it suggests that the second umbilical artery did not develop properly or degenerated, resulting in a single umbilical artery.Rate this question:
- 24.
Pre-natal diagnosis of SUA should prompt examination for other ____________.
Correct Answer(s)
anomaliesExplanation
Pre-natal diagnosis of a single umbilical artery (SUA) should prompt examination for other anomalies. This is because SUA is often associated with other birth defects or abnormalities. By conducting further examinations, healthcare professionals can identify and address any additional anomalies that may be present, ensuring appropriate care and management for the fetus and mother.Rate this question:
- 25.
Currently, there is no definite correlation between SUA and any specific type or pattern of anomalies.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement is true because currently there is no established correlation between SUA (Serum Uric Acid) and any specific type or pattern of anomalies. This means that the levels of SUA in the blood do not reliably indicate the presence or likelihood of any particular anomalies or abnormalities.Rate this question:
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- 26.
SUA may be associated with..
- A.
Congenital/chromosomal anomalies (trisomies)
- B.
Cleft lip
- C.
Cardiovascular abnormalities
- D.
Genitourinary defects
- E.
Gestational diabetes
- F.
Fetuses exposed to teratogens
- G.
Spontaneous abortions
Correct Answer(s)
A. Congenital/chromosomal anomalies (trisomies)
B. Cleft lip
C. Cardiovascular abnormalities
D. Genitourinary defects
F. Fetuses exposed to teratogens
G. Spontaneous abortionsExplanation
SUA (Single Umbilical Artery) is a condition where there is only one umbilical artery instead of the normal two. It can be associated with various factors including congenital/chromosomal anomalies (such as trisomies like Down syndrome), cleft lip, cardiovascular abnormalities, genitourinary defects, fetuses exposed to teratogens (substances that can cause birth defects), and spontaneous abortions (miscarriages). These factors may increase the risk of having SUA and can be potential causes or associated conditions with this condition.Rate this question:
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- 27.
Check all areas where SUA should be documented
- A.
Near placenta
- B.
Mid cord
- C.
Near fetal side
Correct Answer(s)
A. Near placenta
B. Mid cord
C. Near fetal sideExplanation
SUA stands for Single Umbilical Artery, which is a condition where there is only one artery instead of the usual two in the umbilical cord. This condition should be documented in all areas where it is present to ensure proper medical record keeping. The areas where SUA should be documented include near the placenta, in the middle of the cord, and near the fetal side.Rate this question:
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- 28.
______________ _____________ is the term used to describe entanglement of the umbilical cord around the fetal neck.
Correct Answer(s)
nuchal cordExplanation
A nuchal cord is the term used to describe when the umbilical cord becomes wrapped around the fetal neck. This condition occurs in a significant number of pregnancies and is usually harmless. However, in some cases, it can lead to complications such as restricted blood flow or oxygen to the baby. Medical professionals closely monitor pregnancies with a nuchal cord and may take measures to ensure the baby's safety during delivery.Rate this question:
- 29.
____________ ____________ is frequently noted in many otherwise normal, uncomplicated pregnancies with uneventful deliveries and is rarely associated with perinatal mortality.
Correct Answer(s)
nuchal cordExplanation
A nuchal cord refers to the condition where the umbilical cord is wrapped around the baby's neck during pregnancy or delivery. It is a common occurrence in many pregnancies and deliveries that are otherwise normal and uncomplicated. This condition is rarely associated with perinatal mortality, meaning that it does not usually result in the death of the baby.Rate this question:
- 30.
Nuchal cord- Sonographically, visualized as ____________ ____________ of cord around fetal ___________.
Correct Answer(s)
adjacent loops, neckExplanation
The correct answer is "adjacent loops, neck". This means that on a sonogram, a nuchal cord can be seen as adjacent loops of the umbilical cord around the fetal neck.Rate this question:
- 31.
A single loop visualized around the fetal neck is something that increases perinatal mortality.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A single loop is usually an incidental finding, is more significant when there are two or more loops around the fetal neckRate this question:
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- 32.
Observation of nuchal cord is of greater concern when seen in association with other findings, specifically ______________ fluid, ___________-____________ and decreased fetal _________________.
Correct Answer
decreased, post, dates, movementsExplanation
Observation of nuchal cord is of greater concern when seen in association with other findings, specifically decreased amniotic fluid, post-term dates, and decreased fetal movements. This combination of factors suggests possible complications and may require closer monitoring or intervention.Rate this question:
- 33.
Cord knots are usually of no significance but may represent a hazard to the fetus if the knot _____________ and causes _______________ of cord.
Correct Answer
tightens, compressionExplanation
If the cord knot tightens, it can cause compression of the cord. This means that the knot can constrict or squeeze the cord, potentially cutting off the blood supply and oxygen to the fetus. This can be hazardous and may lead to complications or even harm the fetus.Rate this question:
- 34.
It is important to monitor a cord knot during labor for fetal ______________ or _____________.
Correct Answer
distress, asphyxiaExplanation
During labor, monitoring a cord knot is important to detect any signs of fetal distress or asphyxia. A cord knot can potentially restrict blood flow and oxygen supply to the fetus, leading to distress or asphyxia. By closely monitoring the cord knot, healthcare providers can promptly intervene and take necessary measures to ensure the well-being of the baby. This may include changing the mother's position, administering oxygen, or even performing an emergency cesarean section if needed.Rate this question:
- 35.
Cord knots Increased occurence in _______________ twins.
Correct Answer
monoamnioticExplanation
Cord knots are more likely to occur in monoamniotic twins. Monoamniotic twins share the same amniotic sac and therefore have a higher risk of their umbilical cords becoming entangled and forming knots. This is because they have less space and freedom to move around compared to twins in separate amniotic sacs. The entanglement of the cords can lead to complications during pregnancy and delivery, making cord knots more common in monoamniotic twins.Rate this question:
- 36.
Cord knots are easily detected using ultrasound
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Cord knots are NOT easy to detect on ultrasoundRate this question:
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Mar 21, 2023Quiz Edited by
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Mar 28, 2011Quiz Created by
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