Which of the following statement about L/S

Which of the following statement about L/S ratio in amniotic fluid is correct? Group of answer choices slight variations in technique does not significantly affect the accuracy of results An L/S ratio of 2:1 is incompatible with fetal survival An L/S ratio of 1:0 is compatible with fetal survival When L/S ratio is 2:1 majority of infant develops mature lungs Which of the following statements is not true about Chorionic Villi Sampling? Group of answer choices insertion of a needle into the fetal portion of the placenta, at the area of the chorion frondosum CVS is performed at 8-12 weeks gestation under ultrasound guidance Chorionic villi cells are examined to detect chromosome abnormalities such as Down syndrome and NTD. Is a transcervical or transabdominal insertion of a needle into the placenta A pregnant client reveals a low alpha-fetoprotein. The nurse is aware that this test result may indicate the presence of: Group of answer choices cystic fibrosis Phenylketonuria Down syndrome Neural tube defects The nurse understands that when a contraction stress test is interpreted as negative it means: Group of answer choices The fetus at this time has oxygen reserves but the test should be repeated weekly The test should be repeated in 24 hours because examination results indicate hyperstimulation immediate birth should be considered because there is no fetal heart rate acceleration with fetal movement A trial induction Mrs. Cherry Santos tells the nurse that she had weekly Non stress test. A review of Mrs. Santos last non stress test shows that, after 20 minutes 2 periods of fetal activity were noted with accelerations of 15 beats/min lasting for 15 secs. The nurse would interpret the result as: Group of answer choices Positive Reactive Negative Non Reactive A pregnant client reveals an elevated alpha-fetoprotein. The nurse is aware that this test result may indicate the presence of : Group of answer choices cystic fibrosis Phenylketonuria Down syndrome Neural tube defect When is the best time to determine gestational age based on biparietal diameter through ultrasound? Group of answer choices 4 to 6 weeks 5 to 7 weeks 7 to 10 weeks 12 to 20 weeks While working with the pregnant woman in her first trimester, the nurse is aware that chorionic villus sampling can be performed during pregnancy as early as _____ weeks. Group of answer choices 4 8 10 12 Which diagnostic test evaluates the effect of fetal movement on fetal heart activity? Group of answer choices Contraction stress test (CST) Sonography Biophysical profile Nonstress test (NST) Which nursing intervention is necessary before a second-trimester transabdominal ultrasound? Group of answer choices Place the woman NPO for 12 hours. Instruct the woman to drink 1 to 2 quarts of water. Administer a soapsuds enema. Perform an abdominal prep. The purpose of initiating contractions in a CST is to: Group of answer choices Determine the degree of fetal activity. Apply a stressful stimulus to the fetus. Identifying fetal acceleration patterns. Increase placental blood flow.

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