Physiology And Changes In Pregnancy/Fetal Development

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    The best time to avoid teratogens to prevent major congenital defects is

    • Early pregnancy
    • Late pregnancy
    • Prior to birth
    • Prior to sexual intercourse
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About This Quiz

Do you work in the health sector or wish to do the same? Do you know about fetal development and physiology changes in pregnancy? Take this quiz and check your knowledge for the same. Do you know pregnancy causes physiologic changes in all maternal organ systems? In the quiz below, we have asked a few simple questions about the fetus's growth and development. Can you answer them all? Give it a try and see for yourself.

Physiology And Changes In Pregnancy/Fetal Development - Quiz

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  • 2. 

    Which hormone is secreted by the placenta after 12th week gestation and is primarily responsible for maintenance of the pregnancy?

    • Progestrone

    • Prolactin

    • Estrogen

    • BHCG

    Correct Answer
    A. Progestrone
    Explanation
    Progesterone is the hormone secreted by the placenta after the 12th week of gestation and is primarily responsible for maintaining the pregnancy. Progesterone helps to prepare the uterus for implantation of the fertilized egg and supports the growth of the placenta. It also helps to prevent contractions of the uterus, which could potentially lead to a miscarriage. Additionally, progesterone plays a role in regulating the immune system during pregnancy to prevent rejection of the fetus.

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  • 3. 

    Why is the embryonic period such a high-risk time for the development of major birth defects?

    • Basic structures of all major body organs are completed during this time

    • Placental circulation is established during this time

    • Refinement of organ function occurs during this time

    • Teratogen exposure is highest at this time

    Correct Answer
    A. Basic structures of all major body organs are completed during this time
    Explanation
    During the embryonic period, which occurs during the first 8 weeks of pregnancy, the basic structures of all major body organs are completed. This is a critical time for development, as any disruptions or abnormalities during this period can have long-lasting effects on the formation of organs and systems. The development of major birth defects is more likely to occur during this time because it is when the foundation for organ development is being established. Therefore, any disturbances or disruptions in this process can lead to significant abnormalities in the structure and function of organs, resulting in major birth defects.

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  • 4. 

    Implantation occurs approximately how soon after fertilization?

    • 2 days

    • 6 days

    • 10 days

    • 14 days

    Correct Answer
    A. 6 days
    Explanation
    After fertilization, the fertilized egg travels down the fallopian tube and into the uterus. Implantation occurs when the fertilized egg attaches itself to the lining of the uterus. This process usually takes place around 6 days after fertilization. During implantation, the fertilized egg burrows into the uterine lining, establishing a connection with the mother's blood vessels. This is a crucial step for the development of the pregnancy.

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  • 5. 

    When does the embryonic heart begins to beat?

    • At conception

    • 2 weeks post conception

    • Weeks 3-4 post conception

    • Weeks 8-9 post conception

    Correct Answer
    A. Weeks 3-4 post conception
    Explanation
    During weeks 3-4 post conception, the embryonic heart begins to beat. This is a critical stage in the development of the heart, as it starts to form and function as a pump for the first time. The heart's development begins with the formation of the primitive heart tube, which then starts to contract and beat, allowing blood to circulate through the developing embryo. This milestone is significant as it marks the beginning of the cardiovascular system and is an essential step in the overall development of the embryo.

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  • 6. 

    When evaluating BP in pregnant woman at 22 weeks gestation, the nurse practitioner can anticipate that the BP will

    • Be at its lowest point during the second trimester

    • Decrease gradually until term

    • Remain stable within prepregnancy values

    Correct Answer
    A. Be at its lowest point during the second trimester
    Explanation
    During pregnancy, blood pressure tends to decrease in the first and second trimesters and then gradually increase in the third trimester. Therefore, the correct answer is that the blood pressure will be at its lowest point during the second trimester. This is because during this time, the woman's body has adapted to the increased blood volume and hormonal changes, leading to a temporary decrease in blood pressure.

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  • 7. 

    Which of the following is not used as means to date a pregnancy?

    • Quantitative hCG

    • Sure date of LMP

    • Uterine sizing

    • Ultrasound

    Correct Answer
    A. Quantitative hCG
    Explanation
    Quantitative hCG is not used as a means to date a pregnancy. This is because hCG levels can vary widely among individuals and may not accurately reflect the gestational age. Other methods such as the sure date of LMP (last menstrual period), uterine sizing, and ultrasound are more reliable in determining the age of a pregnancy.

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  • 8. 

    Which of the following is NOT a function of amniotic fluid?

    • Cushioning the fetus 

    • Providing nutrients to the fetus 

    • Allowing for fetal movement 

    • Maintaining a constant temperature for the fetus

    Correct Answer
    A. Providing nutrients to the fetus 
    Explanation
    While amniotic fluid plays a vital role in fetal development, it does not directly provide nutrients. The fetus receives nutrients through the placenta via the umbilical cord. The amniotic fluid primarily functions as a shock absorber, allows for fetal movement and development, and helps maintain a stable temperature.

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  • 9. 

    A pregnant client asks when she should be able to hear the baby's heartbeat. The nurse's best response is

    • FHT are heard by doppler at 6-7 weeks gestation

    • FHT are heard by doppler at 10-12 weeks gestation

    • FHT are heard by doppler at 16-18 weeks gestation

    • FHT are heard by doppler at 20-23 weeks gestation

    Correct Answer
    A. FHT are heard by doppler at 10-12 weeks gestation
    Explanation
    The correct answer is FHT are heard by doppler at 10-12 weeks gestation. This is because the fetal heartbeat can typically be detected using a Doppler device between 10 and 12 weeks of gestation. Before this time, it may be difficult to detect the heartbeat due to the small size of the fetus and the position of the uterus. After 12 weeks, the heartbeat becomes stronger and easier to hear using a Doppler.

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  • 10. 

    All of the following are assessed during the client H&P. Which would be classified as "probable sign" of pregnancy?

    • Breast enlargement and tenderness

    • Cessation of menstruation

    • Softening of the cervix

    • FHTs of 140 bpm

    Correct Answer
    A. Softening of the cervix
    Explanation
    Softening of the cervix is classified as a "probable sign" of pregnancy because it is a physical change that can be detected by a healthcare provider during a pelvic examination. This change occurs due to hormonal changes in the body during pregnancy, causing the cervix to become softer and more pliable. Other signs such as breast enlargement and tenderness, cessation of menstruation, and fetal heart tones (FHTs) of 140 bpm can also be indicative of pregnancy, but they are considered "presumptive signs" as they can be caused by other factors as well.

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  • 11. 

    The physiological basis for pseudoanemia in pregnancy is

    • There is a decrease in RBCs resulting in decreased oxygen carrying capacity

    • There is an increase in both RBCs and plasma with plasma increasing at greater proportion

    • There is an increase in plasma volume while RBCs count does not increase

    • There is an increase in plasma volume while RBCs count decreases

    Correct Answer
    A. There is an increase in both RBCs and plasma with plasma increasing at greater proportion
    Explanation
    During pregnancy, there is an increase in both red blood cells (RBCs) and plasma volume. However, the increase in plasma volume is greater compared to the increase in RBCs. This leads to a relative decrease in the concentration of RBCs, resulting in a condition known as pseudoanemia. Despite the increase in RBCs, the overall oxygen carrying capacity decreases due to the disproportionate increase in plasma volume.

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  • 12. 

    Client asks:" my period is a week late". Is it too early for pregnancy test? which of the following responses would be the most appropriate?

    • A pregnancy test would be accurate at this time

    • For accuracy, you should be at least 2 weeks late

    • Have you been sexually active?

    • Would you be upset if you were pregnant?

    Correct Answer
    A. A pregnancy test would be accurate at this time
    Explanation
    The correct answer is "a pregnancy test would be accurate at this time." This response is the most appropriate because it directly addresses the client's concern about the accuracy of a pregnancy test. It indicates that taking a pregnancy test at this point would provide reliable results.

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  • 13. 

    Which of the following is true regarding embryonic period?

    • It starts at fertilization and continues through day 48 of fetal development

    • It starts at the end of implantation and continues through day 48 of fetal development

    • It starts at fertilization and continues through day 56 of fetal development

    • It starts approximately 7 days after fertilization and proceeds through day 56 of fetal development

    Correct Answer
    A. It starts approximately 7 days after fertilization and proceeds through day 56 of fetal development
    Explanation
    The embryonic period starts approximately 7 days after fertilization and proceeds through day 56 of fetal development. This means that it begins after the fertilized egg has implanted into the uterine wall and lasts for a total of 8 weeks. During this period, the major organs and body systems of the developing embryo are formed.

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  • 14. 

    During preconceptual counselling a client has a non immune rubella. Once she is immunized how long she should wait before becoming pregnant?

    • 1 month

    • 3 months

    • No wait is needed

    Correct Answer
    A. 1 month
    Explanation
    After receiving the rubella immunization, the client should wait for 1 month before becoming pregnant. This waiting period is necessary to ensure that the vaccine has had enough time to provide full protection against rubella. Waiting for 1 month reduces the risk of the client contracting rubella during pregnancy, which can be harmful to the developing fetus.

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  • 15. 

    The eyelids of fetus remain fused through what gestational age by LMP?

    • 15th

    • 20th

    • 25th

    • 30th

    Correct Answer
    A. 25th
    Explanation
    The correct answer is 25th. During fetal development, the eyelids of the fetus remain fused to protect the developing eyes. By the 25th week of gestation, the eyelids start to open and separate, allowing the fetus to begin practicing blinking and eye movements. This milestone is an important step in the development of the visual system.

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  • Oct 20, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 21, 2011
    Quiz Created by
    WomanInLove
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