Ob Quiz 1 Review
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What is the earliest sign of an intrauterine pregnancy?
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Fetal pole
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Heart beat
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Double sac sign
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Intradecidual sign
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About This Quiz
OB Quiz 1 Review assesses knowledge on early signs of intrauterine pregnancy, visibility of the yolk sac, growth rates of gestational sacs, key features of embryonic development, and genetic factors in failed pregnancies. It is crucial for learners in obstetrics and radiology.
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- 2.
During what week is the yolk sac visable?
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Week 1
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Week 5
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Week 7
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Week 12
Correct Answer
A. Week 5Explanation
During week 5 of pregnancy, the yolk sac becomes visible. The yolk sac is an early structure that provides nutrients to the developing embryo before the placenta is fully formed. It is the site of early blood cell formation and plays a crucial role in the early stages of embryonic development. This is why week 5 is the correct answer for when the yolk sac becomes visible.Rate this question:
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- 3.
What is the rate of growth for an early gestational sac?
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2 inches per day
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1 mm per week
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1 mm per month
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1 mm per day
Correct Answer
A. 1 mm per weekExplanation
The rate of growth for an early gestational sac is typically measured in millimeters per week. This rate of growth is slower compared to other options given, such as inches per day or millimeters per day. The slow growth rate is expected during the early stages of pregnancy and is a normal part of fetal development.Rate this question:
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- 4.
A small sonolucent amniotic sac, yolk sac, and developing embryo between is know as _________.
Correct Answer
double blebExplanation
A small sonolucent amniotic sac, yolk sac, and developing embryo between is known as a double bleb.Rate this question:
- 5.
The normal gestational sac appears as a small anechoic sac with 2 layers of decidua surrounding it know as the ''double sac sign''.
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True
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False
Correct Answer
A. TrueExplanation
The normal gestational sac appears as a small anechoic sac with 2 layers of decidua surrounding it, known as the "double sac sign." This means that the statement is true.Rate this question:
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- 6.
What percentage of failed pregnancies are due to genetic abnormalities?
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10-12%
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30-50%
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50-70%
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80-100%
Correct Answer
A. 50-70%Explanation
Approximately 50-70% of failed pregnancies are due to genetic abnormalities. This means that more than half of miscarriages occur because of issues with the baby's chromosomes or genes. These abnormalities can prevent the embryo from developing properly, leading to a failed pregnancy. It is important to note that there can be various other factors contributing to failed pregnancies, but genetic abnormalities are a significant cause.Rate this question:
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- 7.
Approximately half of women who experience this end up miscarrying.
Correct Answer
Vaginal bleedingExplanation
Approximately half of women who experience vaginal bleeding end up miscarrying.Rate this question:
- 8.
What are the findings consistent with a spontaneous complete/incomplete abortion?
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Thickened endometrium
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Increased flow in myometrium
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Both A and B
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None of the above
Correct Answer
A. Both A and BExplanation
Both a thickened endometrium and increased flow in the myometrium are findings consistent with a spontaneous complete/incomplete abortion. A thickened endometrium can occur due to the presence of retained products of conception, while increased flow in the myometrium can be seen as a result of the body's response to the abortion process. Therefore, both findings are indicative of a spontaneous complete/incomplete abortion.Rate this question:
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- 9.
What is an ectopic pregnancy
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A viable pregnancy
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A pregnancy that occurs anywhere outside the uterus
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An extrauterine pregnancy
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Both B and C
Correct Answer
A. Both B and CExplanation
An ectopic pregnancy refers to a pregnancy that occurs outside the uterus, which is commonly known as an extrauterine pregnancy. This type of pregnancy is not viable and cannot develop into a healthy baby. Therefore, the correct answer is both option B and C, as they both accurately describe an ectopic pregnancy.Rate this question:
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- 10.
What is the most common location for an ectopic pregnancy?
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Ovary
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Abdomen
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Uterus
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Fallopian tube
Correct Answer
A. Fallopian tubeExplanation
The most common location for an ectopic pregnancy is the fallopian tube. Ectopic pregnancy occurs when a fertilized egg implants outside of the uterus, and the majority of these cases occur in the fallopian tube. This is because the fallopian tube is the pathway through which the egg travels from the ovary to the uterus. If the egg is unable to make it to the uterus and becomes implanted in the fallopian tube instead, it can lead to a potentially dangerous condition.Rate this question:
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- 11.
Physiologic termination of a pregnancy prior to 20 weeks is known as?
Correct Answer
Spontaneous abortionExplanation
Physiologic termination of a pregnancy prior to 20 weeks is known as a spontaneous abortion. This term refers to the natural ending of a pregnancy, often due to fetal abnormalities or maternal health issues. It is different from an induced abortion, which is a deliberate termination of pregnancy. The term "spontaneous" indicates that the abortion occurs without any external intervention or medical procedures.Rate this question:
- 12.
How many chromosomes are in one ovum?
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46
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69
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23
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24
Correct Answer
A. 23Explanation
An ovum, or egg cell, is a reproductive cell that is produced by the female reproductive system. Each ovum contains half the number of chromosomes compared to other cells in the body. In humans, the normal number of chromosomes in a cell is 46, but in an ovum, there are only 23 chromosomes. This is because during fertilization, when the ovum combines with a sperm cell, the resulting zygote will have the complete set of 46 chromosomes. Therefore, the correct answer is 23.Rate this question:
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- 13.
What structure provides the embryo's first blood cells?
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Placenta
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Umbilical vesicle
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Portal vein
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None of the above
Correct Answer
A. Umbilical vesicleExplanation
The umbilical vesicle, also known as the yolk sac, is the structure that provides the embryo's first blood cells. It is an early embryonic structure that plays a crucial role in the development of the circulatory system. The umbilical vesicle is responsible for producing and delivering the initial blood cells to the developing embryo before the formation of the placenta. The placenta, on the other hand, is formed later in pregnancy and serves as the organ that provides oxygen and nutrients to the developing fetus. The portal vein is a blood vessel that carries blood from the digestive organs to the liver. Therefore, the correct answer is the umbilical vesicle.Rate this question:
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- 14.
An example of a quantitive pregnancy test is ________.
Correct Answer
BloodExplanation
Blood is an example of a quantitative pregnancy test because it can measure the exact amount of the pregnancy hormone hCG (human chorionic gonadotropin) in the bloodstream. This type of test provides a numerical result, indicating the specific concentration of hCG present in the blood, which can help determine the stage of pregnancy or detect early pregnancy. Other examples of quantitative pregnancy tests include urine tests that provide a numerical measurement of hCG levels.Rate this question:
- 15.
An example of a qualitative pregnancy test is?
Correct Answer
urineExplanation
A qualitative pregnancy test detects the presence of the hormone hCG in the urine to determine if a woman is pregnant or not. This test provides a qualitative result, indicating either a positive or negative result for pregnancy. The urine sample is collected and tested using a specific method, such as immunoassay, to identify the presence of hCG. This type of test is commonly used at home and in healthcare settings due to its convenience and reliability.Rate this question:
- 16.
Where does implantation of the embryo occur?
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Serosa
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Endometrium
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Myometrium
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Exometrium
Correct Answer
A. EndometriumExplanation
Implantation of the embryo occurs in the endometrium. The endometrium is the inner lining of the uterus that thickens during the menstrual cycle in preparation for implantation. Once fertilization occurs, the embryo travels down the fallopian tube and implants itself into the endometrium, where it can receive nutrients and continue to develop. The endometrium provides a suitable environment for the embryo to attach and establish a connection with the mother's blood supply, allowing for further growth and development.Rate this question:
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- 17.
What are some of the sonographic findings of a miscarriage?
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Lack of fetal heart beat
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Tachycardia
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Decreased fetal movement
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Expanded amnion sign
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Lack of double bleb sign
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Double contour sign
Correct Answer(s)
A. Lack of fetal heart beat
A. Expanded amnion sign
A. Lack of double bleb signExplanation
Some of the sonographic findings of a miscarriage include the lack of a fetal heart beat, the presence of an expanded amnion sign, and the absence of a double bleb sign. These findings indicate that the pregnancy is not progressing normally and may be indicative of a miscarriage. Tachycardia, decreased fetal movement, and the double contour sign are not typically associated with a miscarriage and may suggest other complications or conditions.Rate this question:
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- 18.
What are the sonographic findings of a blighted ovum?
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Gestational sac
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Empty gestational sac >20 mm
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Larger than expected sac size
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Smaller than expected sac sign
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Tachycardia
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Bradycardia
Correct Answer(s)
A. Empty gestational sac >20 mm
A. Smaller than expected sac signExplanation
The sonographic findings of a blighted ovum include an empty gestational sac that is larger than expected (>20 mm) and a smaller than expected sac sign. This means that the gestational sac is present, but there is no embryo or fetal pole inside. This can be confirmed by the absence of a heartbeat. Tachycardia and bradycardia are not specific findings for a blighted ovum and are not typically associated with this condition.Rate this question:
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- 19.
What is the sonographic appearance of an Inevitable abortion?
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Empty low lying gestational sac
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Gestational sac seen in cervix/vagina
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Closed cervix
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Open cervix
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Baby in breech position
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Bleeding
Correct Answer(s)
A. Empty low lying gestational sac
A. Gestational sac seen in cervix/vagina
A. Open cervixExplanation
An inevitable abortion refers to a pregnancy that cannot be saved and will end in a miscarriage. The sonographic appearance of an inevitable abortion includes an empty low-lying gestational sac, meaning that there is no fetus present within the sac. Additionally, the gestational sac may be seen in the cervix or vagina, indicating that the pregnancy is not viable. The cervix is open in an inevitable abortion, which allows for the passage of tissue and blood. Therefore, the correct answer options are empty low-lying gestational sac, gestational sac seen in cervix/vagina, and open cervix.Rate this question:
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- 20.
What is the sonographic appearance of a subchorionic hemorrhage?
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Diamond shaped
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Crescent shaped
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Complex fluid collection between gestational sac and uterus
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Complex fluid collection between uterus and vagina
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Simple cyst like appearance
Correct Answer(s)
A. Crescent shaped
A. Complex fluid collection between gestational sac and uterusExplanation
A subchorionic hemorrhage refers to bleeding that occurs between the gestational sac and the uterus. The sonographic appearance of a subchorionic hemorrhage is described as crescent-shaped, indicating a fluid collection that forms a curved shape. This shape is characteristic of a subchorionic hemorrhage and helps to differentiate it from other types of fluid collections. The term "complex" suggests that the fluid collection is not a simple cyst-like structure but has additional features or components.Rate this question:
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- 21.
An early failed pregnancy that remains in the uterus is known as?
Correct Answer(s)
missed abortionExplanation
A missed abortion refers to an early pregnancy loss where the embryo or fetus has died, but the body does not expel it. This means that the pregnancy remains in the uterus without any signs of miscarriage. It is also known as a silent miscarriage because there are no symptoms like bleeding or cramping. The term "missed" indicates that the loss of pregnancy is not immediately recognized by the pregnant person. Medical intervention may be required to remove the nonviable pregnancy and prevent complications.Rate this question:
- 22.
Vaginal bleeding in a pregnancy of fewer than 20 weeks and may be accompanied by pain and cramping is known as?
Correct Answer(s)
Threatened abortionExplanation
Threatened abortion refers to vaginal bleeding in a pregnancy of fewer than 20 weeks, often accompanied by pain and cramping. This term is used when there is a potential risk of miscarriage, but the pregnancy is still ongoing. It indicates that there is a threat to the continuation of the pregnancy, but it does not necessarily mean that a miscarriage will occur. Close monitoring and medical intervention may be required to prevent further complications and ensure the well-being of the mother and the fetus.Rate this question:
- 23.
Thickened endometrium with increased flow in the myometrium can be seen in a?
Correct Answer(s)
Incomplete abortionExplanation
Thickened endometrium with increased flow in the myometrium can be seen in an incomplete abortion. Incomplete abortion refers to a situation where not all of the products of conception are expelled from the uterus. This can lead to the thickening of the endometrium, which is the lining of the uterus, and increased blood flow in the myometrium, which is the muscular layer of the uterus. These findings can be seen on imaging studies such as ultrasound and can help in diagnosing an incomplete abortion.Rate this question:
- 24.
What are some possible causes for an ectopic pregnancy?
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PID
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Being pregnant
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AMA
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Multiple sexual partners
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Being a virgin
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STI
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IVF
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HIP
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TOM
Correct Answer(s)
A. PID
A. AMA
A. Multiple sexual partners
A. STI
A. IVFExplanation
Possible causes for an ectopic pregnancy include pelvic inflammatory disease (PID), advanced maternal age (AMA), having multiple sexual partners, sexually transmitted infections (STIs), and in vitro fertilization (IVF).Rate this question:
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- 25.
What is this central nervous abnormality?
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Dandy walker syndrome
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Acrania
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Anencephaly
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Both B and C
Correct Answer
A. Both B and CExplanation
Both Acrania and Anencephaly are central nervous abnormalities. Acrania refers to the absence of the skull, while Anencephaly is the absence of major portions of the brain, skull, and scalp. Therefore, the correct answer is Both B and C.Rate this question:
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- 26.
What is this fetal abnormality?
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Omphalocele
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Gastroscesis
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Amniotic band syndrome
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None of the above
Correct Answer
A. Amniotic band syndromeExplanation
Amniotic band syndrome is the correct answer because it is a congenital disorder that occurs when the fetus becomes entangled in fibrous amniotic bands in the womb, leading to various abnormalities. This condition can cause deformities or amputations of limbs, facial clefts, and other defects. Omphalocele and gastroschisis are both abdominal wall defects where the abdominal organs protrude outside the body, while amniotic band syndrome is a separate condition involving the entanglement of fetal body parts.Rate this question:
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- 27.
What is the arrow pointing to in this image?
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Yolk sac
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Umbilical cord cyst
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Fetal pole cyst
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Gestational sac
Correct Answer
A. Umbilical cord cystExplanation
The arrow in the image is pointing to an umbilical cord cyst. This is a fluid-filled sac that forms in the umbilical cord, which connects the fetus to the placenta. Umbilical cord cysts are usually benign and do not cause any harm to the fetus. They are often detected during routine ultrasound examinations and typically resolve on their own without any treatment.Rate this question:
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- 28.
What fetal abnormality is seen in this image?
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Omphalocele
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Normal finding of herniated gut
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Gastroscesis
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Umbilical cord
Correct Answer
A. GastroscesisExplanation
Gastroschesis is a fetal abnormality where the abdominal wall does not properly close, resulting in the intestines and sometimes other organs protruding outside the body. This condition is visible in the image provided, showing the intestines outside the abdomen. Omphalocele, on the other hand, is a different condition where the organs are covered by a sac, and umbilical cord is a normal finding in a fetal image. Therefore, the correct answer is Gastroschesis.Rate this question:
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- 29.
What is the fetal abnormality seen?
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Gastroscesis
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Hydrocele
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Omphalocele
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Enlarged testis
Correct Answer
A. OmphaloceleExplanation
Omphalocele is a fetal abnormality where the abdominal organs protrude through the belly button area due to a defect in the development of the abdominal wall. This condition occurs during fetal development and can be diagnosed through ultrasound imaging. It is characterized by the presence of a sac containing the organs outside the abdomen. Gastroschesis, on the other hand, is a condition where the intestines are located outside the baby's body, but there is no sac covering them. Hydrocele refers to the accumulation of fluid in the scrotum, and enlarged testis simply indicates an abnormal increase in the size of the testicles.Rate this question:
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- 30.
What is the fetal abnormality seen?
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Anencephaly
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Oxycephaly
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Hydroanecepholy
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Cephaly
Correct Answer
A. Hydroanecepholy -
- 31.
What is this sonographic finding?
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Polycystic ovaries
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Polycystic liver
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Molar Pregnancy
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None of the above
Correct Answer
A. Molar PregnancyExplanation
A molar pregnancy is a rare condition in which abnormal tissue grows in the uterus instead of a normal fetus. This abnormal tissue forms a mass or tumor that can be detected on a sonogram. It is characterized by the presence of multiple cystic spaces within the uterus, which can be seen as a sonographic finding. Polycystic ovaries and polycystic liver are unrelated conditions that do not involve the presence of abnormal tissue in the uterus. Therefore, the correct answer is Molar Pregnancy.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
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May 20, 2017Quiz Created by
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