OB NURS 306 OB-Study Guide by chapters Ch1-to-Ch19

OB NURS 306 OB-Study Guide by chapters Ch1-to-Ch19 Chapter 1: Trends and Issues Multiple Choice 1. Since 1995 there has been a significant decrease in the rate of infant death related to which of the following: a. Disorders associated with short gestation and low birth weight b. Accidents c. Sudden infant death d. Newborns affected by complications of placenta, cord, and membranes ANS: c 2. Tobacco use during pregnancy is associated with adverse effects on the unborn infant such as intrauterine growth restriction, preterm births, and respiratory problems. By race, which has the highest percentages of smokers? a. American Indian and Alaskan Natives b. Asian or Pacific Islanders c. Non-Hispanic blacks d. Non-Hispanic whites ANS: a 3. Which of the following women is at the highest risk for health disparity? a. A white, middle-class, 16-year-old woman b. An African American, middle-class, 25-year-old woman c. An African American, upper-middle-class, 19-year-old woman d. An Asian, low-income, 30-year-old woman ANS: d 4. A neonate born at 36 weeks gestation is classified as which of the following? a. Very premature b. Moderately premature c. Late premature d. Term ANS: c 5. The perinatal nurse explains to the student nurse that a goal of the Healthy People 2020 report is to: a. Increase proportion of infants who are breastfed to 93.1%. b. Increase proportion of infants who are breastfed to 90.7%. c. Increase proportion of infants who are breastfed to 85.6%. d. Increase proportion of infants who are breastfed to 83.9%. ANS: d A goal of Healthy People 2020 is to increase the proportion of infants who are breastfed from 74% to 81.9%. 6. The perinatal nurse explains to the student nurse that is the leading cause of infant death in the United States. a. Sudden Infant Death Syndrome b. Respiratory distress of newborns c. Disorders related to short gestation and low birth weight d. Congenital malformations and chromosomal abnormalities ANS: d Multiple Response 7. Which of the following statements are true related to teen pregnancies? (Select all that apply.) a. Teen mothers are at higher risk for HIV. b. Teen mothers are at higher risk for hypertensive problems. c. The birth rate for teenaged women has increased in the past 15 years. d. Infants born to teen mothers are at higher risk for health problems. ANS: a, b, d Health statistics report higher risk for HIV, for hypertensive problems, and for health problems to infants born to teen mothers. Birth rates for teen mothers in all age categories have decreased since 1991. Chapter 2: Ethics and Standards of Practice Issues Multiple Choice 1. An ethical dilemma unique to perinatal nursing is the:a. Innate conflict between maternal and fetal rights b. Intensive use of technologyc. Shortage of health-care resourcesd. Risk of violation of the principle of veracity ANS: a Feedback a. A unique aspect of maternity nursing is that the nurse advocates for two individuals: the woman and the fetus. b. The use of technology is not unique to perinatal nursing. c. Currently, in the United States, decisions in perinatal nursing are not based on resources available. d. In perinatal nursing, the obligation to tell the truth is generally adhered to. 2. The American Nurses Association Code of Ethics for Nurses directs nurses to provide patient care that is:a. Curativeb. Utilitarianc. Negotiabled. Respectful ANS: d Feedback a. Adaptation rather than cure is the goal of nursing. b. Nursing does not define the value of a person by his or her utility. c. The Code of Ethics outlines the nursing profession’s nonnegotiable ethical standard. d. Respect for the inherent dignity, worth, and uniqueness of every individual is part of the Code of Ethics. 3. Evidence-based practice is the integration of the best: a. Randomized clinical trials, clinical expertise, and patients’ requestsb. Research evidence, clinical expertise, and patients’ valuesc. Quantitative research, clinical expertise, and patients’ preferencesd. Research findings, clinical experience, and patients’ preferences ANS: b Feedback a. Evidence-based practice is the use of evidence that may include research beyond randomized clinical trials. b. These elements are the accepted definition of evidence-based practice. c. Qualitative research, as well as quantitative research, contributes to evidence-based practice. d. Clinical expertise, as well as clinical experience, defines evidence-based practice. Multiple Response 4. Infants whose mothers were obese during pregnancy are at higher risk for which of the following? (Select all that apply.) a. Childhood diabetes b. Heart defects c. Hypospadias d. Respiratory distress ANS: a, b, c Fetuses and/or infants of women who were obese during pregnancy are at higher risk for spina bifida, health defects, anorectal atresia, hypospadias, intrauterine fetal death, birth injuries related to macrosomia, and childhood obesity and diabetes. Chapter 3: Genetics, Conception, Fetal Development, and Reproductive Technology Multiple Choice 1. The color of a person’s hair is an example of which of the following? a. Genome b. Sex-link inheritance. C. Genotype d. Phenotype ANS: d Feedback a. Genome is an organism’s complete set of DNA. b. Sex-link inheritance refers to genes or traits that are located only on the X chromosome. c. Genotype refers to a person’s genetic makeup. d. Correct. Phenotype refers to how genes are outwardly expressed, such as eye color, hair color, and height. 2. Which of the following statements by a pregnant woman indicates she needs additional teaching on ways to reduce risks to her unborn child from the potential effects of exposure to toxoplasmosis? a. “I will avoid rare lamb.” b. “I will wear a mask when cleaning my cat’s litter box.” c. “I understand that exposure to toxoplasmosis can cause blindness in the baby.” d. “I will avoid rare beef.” ANS: b Feedback a. Exposure occurs when the protozoan parasite found in cat feces and uncooked or rare beef and lamb is ingested. b. Correct. Pregnant women and women who are attempting pregnancy should avoid contact with cat feces. Exposure occurs when the protozoan parasite found in cat feces and uncooked or rare beef and lamb is ingested. Wearing a mask will not decrease the risk through ingestion of the parasite. c. Exposure to toxoplasmosis can cause fetal death, mental retardation, and blindness. d. Exposure occurs when the protozoan parasite found in cat feces and uncooked or rare beef and lamb is ingested. 3. The fetal circulatory structure that connects the pulmonary artery with the descending aorta is known as which of the following? a. Ductus venosus b. Foramen ovale c. Ductus arteriosus d. Internal iliac artery ANS: c Feedback a. The ductus venosus connects the umbilical vein to the inferior vena cava. b. The foramen ovale is the opening between the right and left atria. c. Correct. d. The internal iliac artery connects the external iliac artery to the umbilical artery. 4. A woman at 40 weeks’ gestation has a diagnosis of oligohydramnios. Which of the following statements related to oligohydramnios is correct? a. It indicates that there is a 25% increase in amniotic fluid. b. It indicates that there is a 25% reduction of amniotic fluid. c. It indicates that there is a 50% increase in amniotic fluid. d. It indicates that there is a 50% reduction of amniotic fluid. ANS: d Feedback a. Oligohydramnios is a decrease, not an increase in amniotic fluid. b. Oligohydramnios is a 50% reduction in amniotic fluid. c. Oligohydramnios is a decrease, not an increase in amniotic fluid. d. Correct. Oligohydramnios refers to a decreased amount of amniotic fluid of less than 500 mL at term or 50% reduction of normal amounts. 5. A diagnostic test commonly used to assess problems of the fallopian tubes is: a. Endometrial biopsy b. Ovarian reserve testing c. Hysterosalpingogram d. Screening for sexually transmitted infections ANS: c Feedback a. Endometrial biopsy provides information on the response of the uterus to hormonal signals. b. Ovarian reserve testing is used to assess ovulatory functioning. c. Correct. Hysterosalpingogram provides information on the endocervical canal, uterine cavity, and fallopian tubes. d. STIs can cause adhesions within the fallopian tubes, but screening cannot confirm that adhesions are present. KEY: Integrated Process: Teaching and Learning | Cognitive Level: Knowledge | Content Area: Maternity | Client Need: Safe and Effective Care Environment | Difficulty Level: Moderate 6. The nurse is interviewing a gravid woman during the first prenatal visit. The woman confides to the nurse that she lives with a number of pets. The nurse should advise the woman to be especially careful to refrain from coming in contact with the stool of which of the pets? a. Cat b. Dog c. Hamster d. Bird ANS: a 7. A client is to take Clomiphene Citrate for infertility. Which of the following is the expected action of this medication? a. Decrease the symptoms of endometriosis b. Increase serum progesterone levels c. Stimulate release of FSH and LH d. Reduce the acidity of vaginal secretions ANS: c 8. The nurse takes the history of a client, G2 P1, at her first prenatal visit. The client is referred to a genetic counselor, due to her previous child having a diagnosis of . a. Unilateral amblyopia b. Subdural hematoma c. Sickle cell anemia d. Glomerular nephritis ANS: c 9. A nurse is teaching a woman about her menstrual cycle. The nurse states that is the most important change that happens during the secretory phase of the menstrual cycle. a. Maturation of the graafian follicle b. Multiplication of the fimbriae c. Secretion of human chorionic gonadotropin d. Proliferation of the endometrium ANS: d 10. An ultrasound of a fetus’ heart shows that “normal fetal circulation is occurring.” Which of the following statements is consistent with the finding? a. A right to left shunt is seen between the atria. b. Blood is returning to the placenta via the umbilical vein. c. Blood is returning to the right atrium from the pulmonary system. d. A right to left shunt is seen between the umbilical arteries. ANS: a Feedback a. This is correct. The foramen ovale is a duct between the atria. In fetal circulation, there is a right to left shunt through the duct. b. Blood returns to the placenta via the umbilical arteries. c. Most of the blood bypasses the pulmonary system. The blood that does enter the pulmonary system returns to the left atrium. d. There is no duct between the umbilical arteries. 11. The clinic nurse knows that the part of the endometrial cycle occurring from ovulation to just prior to menses is known as the: a. Menstrual phase b. Proliferative phase c. Secretory phase d. Ischemic phase ANS: c 12. A clinic nurse explains to the pregnant woman that the amount of amniotic fluid present at 24 weeks’ gestation is approximately: a. 500 mL b. 750 mL c. 800 mL d. 1000 mL ANS: c Amniotic fluid first appears at about 3 weeks. There are approximately 30 mL of amniotic fluid present at 10 weeks’ gestation, and this amount increases to approximately 800 mL at 24 weeks’ gestation. After that time, the total fluid volume remains fairly stable until it begins to decrease slightly as the pregnancy reaches term. 13. Information provided by the nurse that addresses the function of the amniotic fluid is that the amniotic fluid helps the fetus to maintain a normal body temperature and also: a. Facilitates asymmetrical growth of the fetal limbs b. Cushions the fetus from mechanical injury c. Promotes development of muscle tone d. Promotes adherence of fetal lung tissue ANS: b 14. During preconception counseling, the clinic nurse explains that the time period when the fetus is most vulnerable to the effects of teratogens occurs from: a. 2 to 8 weeks b. 4 to12 weeks c. 5 to 10 weeks d. 6 to 15 weeks ANS: a The period of organogenesis lasts from approximately the second until the eighth week of gestation during which time the embryo undergoes rapid growth and differentiation. During organogenesis, the embryo is extremely vulnerable to teratogens such as medications, alcohol, tobacco, caffeine, illegal drugs, radiation, heavy metals, and maternal (TORCH) infections. Structural fetal defects are most likely to occur during this period because exposure to teratogens either before or during a critical period of development of an organ can cause a malformation. 15. A major fetal development characteristic at 16 weeks’ gestation is: a. The average fetal weight is 450 grams b. Lanugo covers entire body c. Brown fat begins to develop d. Teeth begin to form ANS: d 16. Karen, a 26-year-old woman, has come for preconception counseling and asks about caring for her cat as she has heard that she “should not touch the cat during pregnancy.” The clinic nurse’s best response is: a. It is best if someone other than you change the cat’s litter pan during pregnancy so that you have no risk of toxoplasmosis during pregnancy. b. It is important to have someone else change the litter pan during pregnancy and also avoid consuming raw vegetables. c. Have you had any “flu-like” symptoms since you got your cat? If so, you may have already had toxoplasmosis and there is nothing to worry about. d. Toxoplasmosis is a concern during pregnancy, so it is important to have someone else change the cat’s litter pan and also to avoid consuming uncooked meat. ANS: d Feedback a. The nurse should also explain that the patient should not eat uncooked meat as it is a potential source for toxoplasmosis. b. Raw vegetables are not a source for toxoplasmosis. c. This is not an accurate way to diagnose if the woman has had toxoplasmosis. d. Women need to be aware that Toxoplasma gondii, a single-celled parasite, is responsible for the infection toxoplasmosis. The majority of individuals who become infected with toxoplasmosis are asymptomatic, although when present, symptoms are described as “flu like” and include glandular pain and enlargement and myalgia. Severe toxoplasmosis infection may cause damage to the fetal brain, eyes, or other organs. Toxoplasmosis is usually acquired by consuming raw or poorly cooked meat that has been contaminated with T. gondii. Toxoplasmosis may also be acquired through close contact with feces from an infected animal (usually cats) or soil that has been contaminated with T. gondii. 17. A couple who has sought infertility counseling has been told that the man’s sperm count is very low. The nurse advises the couple that spermatogenesis is impaired when which of the following occur? a. The testes are overheated. b. The vas deferens is ligated. c. The prostate gland is enlarged. d. The flagella are segmented. ANS: a Feedback a. Spermatogenesis occurs in the testes. High temperatures harm the development of the sperm. b. When the vas deferens is ligated, a man has had a vasectomy and is sterile. The sterility is not due to impaired spermatogenesis, but rather to the inability of the sperm to migrate to the woman’s reproductive track. c. The enlarged prostrate has no effect on spermatogenesis. d. The flagella are the “tails” of the sperm. They are normally divided into the middle segment and an end segment. 18. A nurse working with an infertile couple has made the following nursing diagnosis: Sexual dysfunction related to decreased libido. Which of the following assessments is the likely reason for this diagnosis? a. The couple has established a set schedule for their sexual encounters. b. The couple has been married for more than 8 years. c. The couple lives with one set of parents. d. The couple has close friends who gave birth within the last year. ANS: a Feedback a. Couples who “schedule” intercourse often complain that their sexual relationship is unsatisfying. b. Years of marriage are not directly related to a couple’s sexual relationship. c. The fact that the couple lives with one set of parents is unlikely related to their sexual relationship. d. Although it can be very difficult to be around couples who have become pregnant or have healthy babies, this factor is not usually related to a couple’s sexual relationship. True/False 19. The perinatal nurse explains to the student nurse that in the fetal circulation, the lowest level of oxygen concentration is found in the umbilical arteries. ANS: True The highest oxygen concentration (PO2 = 30–35 mm Hg) is found in the blood returning from the placenta via the umbilical vein; the lowest oxygen concentration occurs in blood shunted to the placenta where reoxygenation takes place. The blood with the highest oxygen content is