Fetal Circulation Overview
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Questions and Answers

Which type of inheritance is characterized by a single altered gene and a parent who is heterozygous for the trait?

  • Unifactorial inheritance
  • X-linked recessive inheritance
  • Autosomal dominant inheritance (correct)
  • X-linked dominant inheritance
  • What type of disorder has examples like Huntington’s disease, achondroplasia, and neurofibromatosis?

  • Autosomal dominant disorders (correct)
  • X-linked dominant disorders
  • Multifactorial disorders
  • X-linked recessive disorders
  • In X-linked recessive inheritance, which offspring has a higher risk of inheriting the trait?

  • Daughters of a male with X-linked recessive trait
  • Sons of a father with X-linked dominant trait
  • Daughters of a female carrier
  • Sons of a female carrier (correct)
  • Which type of inheritance involves both genetic and environmental factors influencing the development of conditions like cleft lip and neural tube defects?

    <p>Multifactorial inheritance</p> Signup and view all the answers

    What is the risk of passing an autosomal recessive trait to offspring when both parents have the altered gene?

    <p>75%</p> Signup and view all the answers

    If a female has an X-linked dominant trait, what is the chance of passing the trait to her daughters?

    <p>50%</p> Signup and view all the answers

    During which period of fetal development does the external genitalia begin to form?

    <p>Weeks 13 to 16</p> Signup and view all the answers

    At what week does urine production begin during the fetal period?

    <p>Week 13</p> Signup and view all the answers

    What is the purpose of the ductus venosus in fetal circulation?

    <p>Bypasses the liver and enters the inferior vena cava</p> Signup and view all the answers

    Which substance is produced by 24 weeks and is important for lung function in the fetus?

    <p>Surfactant</p> Signup and view all the answers

    Which membrane forms the fetal portion of the placenta?

    <p>Chorion</p> Signup and view all the answers

    What is the primary function of amniotic fluid?

    <p>Maintains normal body temperature</p> Signup and view all the answers

    What is the approximate fetal weight by 20 weeks of gestation?

    <p>300 g</p> Signup and view all the answers

    During fetal circulation, what does the foramen ovale do?

    <p>Facilitates blood supply to head and extremities</p> Signup and view all the answers

    Which weeks mark the stage where a fetus may survive if born prematurely?

    <p>Weeks 26 to 29</p> Signup and view all the answers

    How much amniotic fluid is present at 24 weeks?

    <p>800 mL</p> Signup and view all the answers

    What is the significance of quickening during the fetal period?

    <p>Mother's first perception of fetal movements</p> Signup and view all the answers

    What is the purpose of Wharton's jelly in fetal development?

    <p>Protects umbilical cord from compression</p> Signup and view all the answers

    During which process does the phenomenon of cleavage occur?

    <p>Mitosis</p> Signup and view all the answers

    Which hormone plays a crucial role in the early detection of pregnancy?

    <p>Human chorionic gonadotropin (hCG)</p> Signup and view all the answers

    What is the essential function of the yolk sac during gestation?

    <p>Transfer of nutrients</p> Signup and view all the answers

    Which structure prevents fertilization by other sperm after a sperm has penetrated the egg?

    <p>Zona pellucida</p> Signup and view all the answers

    What is the primary function of the placenta during pregnancy?

    <p>Providing oxygenation and nutrition to the fetus</p> Signup and view all the answers

    Which hormone leads to the maintenance of the uterine lining during early pregnancy?

    <p>Progesterone</p> Signup and view all the answers

    What is the primary purpose of Doppler ultrasound blood flow assessment?

    <p>Assessing blood flow</p> Signup and view all the answers

    Which prenatal test involves the assessment of maternal-fetal movement?

    <p>Biophysical profile (BPP)</p> Signup and view all the answers

    What are some conditions that can be determined using 2D sonogram?

    <p>Presence of pregnancy and fetal sex determination</p> Signup and view all the answers

    What aspect of fetal development does a 3D ultrasound image primarily capture?

    <p>Fetal abnormalities</p> Signup and view all the answers

    During which prenatal test is amniotic fluid sampled for genetic analysis?

    <p>Amniocentesis</p> Signup and view all the answers

    What is the primary purpose of percutaneous umbilical blood sampling in prenatal testing?

    <p>Genetic analysis through blood sampling</p> Signup and view all the answers

    Which antepartum fetal surveillance test evaluates fetal heart rate (FHR) accelerations, reactivity, and may not develop until 32 weeks in the fetus?

    <p>Nonstress Test (NST)</p> Signup and view all the answers

    Which procedure is used in antepartum fetal surveillance to determine how the fetal heart responds to uterine contractions that temporarily decrease placental blood flow?

    <p>Nipple stimulation</p> Signup and view all the answers

    What does FHR reactivity with accelerations indicate during antepartum fetal surveillance?

    <p>Adequate fetal oxygenation and intact neural pathways</p> Signup and view all the answers

    Which test, part of the Biophysical Profile (BPP), quantifies the amount of amniotic fluid visualized by ultrasound?

    <p>Amniotic fluid index measurement</p> Signup and view all the answers

    Which antepartum fetal surveillance test involves using nipple stimulation or low-dose oxytocin and cannot be done if contraindicated?

    <p>Contraction Stress Test (CST)</p> Signup and view all the answers

    What information does the Biophysical Profile (BPP) provide during antepartum fetal surveillance?

    <p>Data on five parameters including fetal tone and amniotic fluid volume</p> Signup and view all the answers

    What are some danger signs of pregnancy that may indicate pre-term labor?

    <p>Vaginal bleeding, increased vaginal discharge of clear fluid, pelvic pressure</p> Signup and view all the answers

    Which combination of symptoms may suggest the presence of preeclampsia during pregnancy?

    <p>Visual disturbances, severe backache, epigastric pain</p> Signup and view all the answers

    Which physical assessments are typically conducted during prenatal visits to monitor maternal and fetal well-being?

    <p>Blood pressure, uterine activity, fetal surveillance</p> Signup and view all the answers

    What are common symptoms of a urinary tract infection (UTI) during pregnancy?

    <p>Dysuria, severe backache, fever</p> Signup and view all the answers

    Which fetal surveillance methods are typically employed after 12 weeks of pregnancy?

    <p>Fundal height measurement, presence of fetal activity</p> Signup and view all the answers

    What is a symptom commonly associated with preterm labor that may indicate the need for immediate medical attention?

    <p>Persistent abdominal cramping with or without nausea and vomiting or diarrhea</p> Signup and view all the answers

    Which maternal assessment method involves counting at least 10 fetal movements within 12 hours?

    <p>Kick count assessment</p> Signup and view all the answers

    In fetal assessment, which factor is NOT included in the Biophysical Profile (BPP)?

    <p>Fetal length and gestational age</p> Signup and view all the answers

    What is a key consideration in the assessment of pregnant patients undergoing diagnostic testing?

    <p>Patient's understanding of test and reasons for it</p> Signup and view all the answers

    Which aspect is NOT part of the assessment of a patient who has diagnostic testing?

    <p>Patient's and partner's financial status</p> Signup and view all the answers

    What does the acronym BPP stand for in fetal assessment?

    <p>Biophysical Profile</p> Signup and view all the answers

    Which term refers to the process of assessing fetal movements by the mother, often called 'kick counts'?

    <p>Fetal movement assessment</p> Signup and view all the answers

    What is one of the possible risks associated with chorionic villus sampling (CVS) mentioned in the text?

    <p>Higher risk of minor nail or phalangeal hypoplasia</p> Signup and view all the answers

    What is the difference in risk of pregnancy loss between chorionic villus sampling (CVS) and amniocentesis as mentioned in the text?

    <p>0.5-1 percent higher risk with CVS</p> Signup and view all the answers

    What is another name for percutaneous umbilical blood sampling (PUBS) as mentioned in the text?

    <p>Cordocentesis</p> Signup and view all the answers

    At which gestational timeframe is second trimester amniocentesis typically performed according to the text?

    <p>15-20 weeks</p> Signup and view all the answers

    What is the primary purpose of percutaneous umbilical blood sampling (PUBS) as described in the text?

    <p>Obtaining fetal blood for prenatal diagnosis</p> Signup and view all the answers

    What is one of the potential outcomes if chorionic villus sampling (CVS) is performed between 9 and 12 weeks gestation as mentioned in the text?

    <p>Possible minor nail or phalangeal hypoplasia</p> Signup and view all the answers

    What fetal assessment test evaluates fetal heart rate accelerations and reactivity and may not develop until 32 weeks?

    <p>Nonstress test (NST)</p> Signup and view all the answers

    Which prenatal test samples amniotic fluid for genetic analysis?

    <p>Amniocentesis</p> Signup and view all the answers

    Which prenatal test is primarily used to identify fetal abnormalities?

    <p>Chorionic villus sampling</p> Signup and view all the answers

    What does Doppler ultrasound blood flow assessment primarily use to perform the test?

    <p>Ultrasound</p> Signup and view all the answers

    Which fetal assessment test is used to determine multifetal gestation?

    <p>Antepartum fetal surveillance</p> Signup and view all the answers

    What is a reassuring sign during antepartum fetal surveillance?

    <p>Fetal heart rate reactivity with accelerations</p> Signup and view all the answers

    When is FHR reactivity typically observed in the fetus?

    <p>At 32 weeks gestation</p> Signup and view all the answers

    What is the purpose of Vibroacoustic stimulation in antepartum fetal surveillance?

    <p>To elicit a response for assessing FHR reactivity</p> Signup and view all the answers

    What does the Contraction Stress Test (CST) evaluate during antepartum fetal surveillance?

    <p>Fetal response to uterine contractions</p> Signup and view all the answers

    What parameter does the Biophysical Profile (BPP) NOT provide information on?

    <p>Maternal blood pressure</p> Signup and view all the answers

    What is a limitation of the Oxytocin challenge test during antepartum fetal surveillance?

    <p>It cannot be done if contraindicated for uterine contractions</p> Signup and view all the answers

    What is the primary purpose of MATERAL SERUM APHA fetal protein testing offered to women undergoing CVS at 25-20 weeks gestation?

    <p>To measure risk of pregnancy loss</p> Signup and view all the answers

    Which procedure carries a higher risk of minor nail or phalangeal hypoplasia between CVS and second trimester Amniocentesis?

    <p>CVS</p> Signup and view all the answers

    What is the name of the procedure that involves aspiration of amniotic fluid from the sac for further examination during the second trimester?

    <p>Second trimester Amniocentesis</p> Signup and view all the answers

    At what gestational age is Percutaneous Umbilical Blood Sampling (PUBS) typically performed?

    <p>It varies based on the indication</p> Signup and view all the answers

    What is the primary indication for Third Trimester Amniocentesis?

    <p>To determine hemolytic disease</p> Signup and view all the answers

    Which prenatal procedure is also known as cordocentesis or PUBS, and involves obtaining fetal blood from near the placenta for prenatal diagnosis or therapy?

    <p>Percutaneous Umbilical Blood Sampling</p> Signup and view all the answers

    Which test involves the assessment of two markers, human chorionic gonadotropin and unconjugated estriol, to increase the detection of trisomy 18 and 21?

    <p>Multiple Marker Screening</p> Signup and view all the answers

    During which gestational period is Chorionic Villus Sampling typically performed?

    <p>9-12 weeks</p> Signup and view all the answers

    What is the primary purpose of Alpha-Fetoprotein Screening in pregnancies?

    <p>To identify neural tube defects</p> Signup and view all the answers

    Which diagnostic test ideally requires only a blood sample and must be viewed as a first step in screening for specific conditions?

    <p>Alpha-Fetoprotein Screening</p> Signup and view all the answers

    For what purpose is Doppler shift used in pregnancies complicated by conditions like hypertension and placental insufficiency?

    <p>To measure blood flow</p> Signup and view all the answers

    What additional information can be obtained from Chorionic Villus Sampling beyond just genetic, chromosomal, and metabolic disorders?

    <p>Information on placental function</p> Signup and view all the answers

    Which assessment factor is NOT included in the Biophysical Profile (BPP)?

    <p>Fetal length and gestational age</p> Signup and view all the answers

    What aspect is NOT typically part of the maternal assessment when a patient undergoes diagnostic testing?

    <p>Patient's current dietary habits</p> Signup and view all the answers

    In fetal assessment, which movement count range is considered appropriate per hour based on the text?

    <p>5-10 movements per hour</p> Signup and view all the answers

    What is the primary focus of the maternal assessment regarding fetal movement?

    <p>Counting at least 10 fetal movements within 12 hours</p> Signup and view all the answers

    Which factor is not considered during the assessment of a patient who has diagnostic testing?

    <p>Number of living children</p> Signup and view all the answers

    What does BPP (Biophysical Profile) provide information about in antepartum fetal surveillance?

    <p>Fetal reactivity and well-being</p> Signup and view all the answers

    Which notable nutrient is primarily found in vegetables and helps with blood clotting?

    <p>Vitamin K</p> Signup and view all the answers

    Which food group provides significant amounts of Niacin, Thiamin, and Vitamin B12?

    <p>Protein Foods</p> Signup and view all the answers

    What nutrient is commonly found in grains and is important for energy production in the body?

    <p>Riboflavin</p> Signup and view all the answers

    Which food group is a good source of Vitamin D when fortified?

    <p>Milk &amp; Milk Products</p> Signup and view all the answers

    Which nutrient is NOT primarily found in Protein Foods like Meat, Poultry, Fish, Legumes, Eggs, and Nuts?

    <p>Calcium</p> Signup and view all the answers

    Among the listed nutrients, which is NOT typically found in Milk & Milk Products?

    <p>Iron</p> Signup and view all the answers

    Which mineral is crucial for the synthesis of heme for hemoglobin and plays a role in sperm development and fetal development?

    <p>Zinc</p> Signup and view all the answers

    What can zinc deficiency lead to, based on the information provided?

    <p>Growth retardation and sexual immaturity</p> Signup and view all the answers

    Which of the following is a role of iron in the body according to the text?

    <p>Production of red blood cells</p> Signup and view all the answers

    What significant effect can an iron deficiency have on the body as mentioned in the text?

    <p>Iron deficiency anemia</p> Signup and view all the answers

    What are the best dietary sources of iron according to the text?

    <p>Protein-rich foods like meat, fish, and poultry</p> Signup and view all the answers

    Which vitamins play a role in the synthesis of DNA and the formation of new cells?

    <p>Vitamin E and Folate</p> Signup and view all the answers

    What additional essential fatty acids are recommended during pregnancy?

    <p>Omega-3 and Omega-6</p> Signup and view all the answers

    What is the ideal daily intake of carbohydrates recommended during pregnancy?

    <p>100 grams</p> Signup and view all the answers

    Which micronutrient is considered a major mineral during pregnancy?

    <p>Fluoride</p> Signup and view all the answers

    What is the primary function of the Biophysical Profile (BPP) in fetal surveillance?

    <p>Assessing amniotic fluid quantity</p> Signup and view all the answers

    What does a deficiency in Riboflavin lead to during pregnancy?

    <p>Anemia</p> Signup and view all the answers

    Which trimester of pregnancy requires an additional 450 Kcal per day compared to the non-pregnant state?

    <p>3rd Trimester</p> Signup and view all the answers

    What is the primary purpose of prenatal supplements recommended to pregnant women?

    <p>To prevent deficiencies in essential vitamins and minerals</p> Signup and view all the answers

    How can vitamin-mineral megadoses be described according to the information provided?

    <p>Can lead to toxicity, especially with vitamin A</p> Signup and view all the answers

    What is the main reason for recommending a varied diet during pregnancy?

    <p>To prevent any nutrient deficiencies for both mother and fetus</p> Signup and view all the answers

    How does maternal malnutrition during critical periods of fetal development affect the infant?

    <p>Can cause structural and functional abnormalities in the baby</p> Signup and view all the answers

    Why is assessing meal plans important for pregnant women?

    <p>To ensure sufficient nutrients for both the mother and fetus</p> Signup and view all the answers

    What is the purpose of using MyPlate (supertracker) to assess a meal plan during pregnancy?

    <p>To evaluate if all necessary food groups are included for balanced nutrition</p> Signup and view all the answers

    What are the risk factors for developing gestational diabetes according to the text?

    <p>Age 25 or older, BMI &gt; 25, excessive weight gain, symptoms of diabetes</p> Signup and view all the answers

    What complications are associated with pregnancy in adolescents according to the text?

    <p>Complications include iron-deficiency anemia and prolonged labor</p> Signup and view all the answers

    What are the common nutrition-related concerns of pregnancy mentioned in the text?

    <p>Food cravings and aversions, hormone-induced changes in taste and smell, nonfood cravings</p> Signup and view all the answers

    What is a major public health problem associated with pregnancy in older women?

    <p>Hypertension and diabetes</p> Signup and view all the answers

    Why should one be careful with caffeine consumption during pregnancy according to the text?

    <p>Moderate to heavy use may cause spontaneous abortion</p> Signup and view all the answers

    Which group is often associated with nonfood cravings like Pica due to iron-deficiency?

    <p>Hispanic women</p> Signup and view all the answers

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