NURS 4150 Exam 2 Questions and Answers Latest Version 2025 (Already Passed,
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NURS 4150 Exm 2
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NURS 4150 Exm 2
NURS 4150 Exam 2 Questions and Answers Latest Version 2025 (Already Passed)
What are the functions of the placenta? - Answers Excretion -Removing waste products from the fetus
Producing hormones that mature into fetal organs
What is the role of amniotic fluid? - Answers Will increase in volume...
NURS 4150 Exam 2 Questions and Answers Latest Version 2025 (Already Passed)
What are the functions of the placenta? - Answers Excretion -Removing waste products from the fetus
Producing hormones that mature into fetal organs
What is the role of amniotic fluid? - Answers Will increase in volume as the pregnancy progresses Fetal
stage, will increase 10 mL/week 19 to 25 weeks' gestation, will increase 50 to 60 mL/week
Approximately ONE liter at term
What is the term for too-little amniotic fluid? - Answers oligohydramnios
<500 mL at term
What is the term for too-much amniotic fluid? - Answers hydramnios
>2,000 mL at term
What is autosomal dominant inheritance? - Answers One copy of abnormal gene is needed for
phenotype expression
What is autosomal recessive inheritance? - Answers Both genes of pair must be abnormal for disorder to
be expressed
Example: PKU; Sickle Cell Anemia; Cystic Fibrosis
What is X-linked DOMINANT inheritance? - Answers One copy of mutated gene on the X chromosome is
needed for phenotype expression,
Example: hypophosphatemia, Fragile X
What is X-linked RECESSIVE inheritance? - Answers Hemizygous males and homozygous females are
affected
Example: color-blindness, hemophilia, and Duchenne Muscular Dystrophy
, What are the type 2 carrier screening for single-gene disorders? - Answers Used to identify individuals
who have a gene mutation for a genetic condition but do not show symptoms of the condition because
it is an autosomal recessive inheritance
What is genetic testing? - Answers the analysis of human DNA, RNA, chromosomes, and/or proteins to
detect abnormalities related to an inherited or medical condition
What is preconceptual testing? - Answers Done before conception:
Blood tests, preimplantation genetic diagnosis
Prenatal Testing- maternal/paternal
Blood test for various single gene disorders
What is prenatal testing? - Answers Testing on fetus before born
What are type 1 tests? - Answers *In clients with clinical symptoms or who have a family history of a
genetic disease*
Some of these genetic tests are prenatal tests or tests used to identify the genetic status of a pregnancy
at risk for a genetic condition.
What are type 3 tests? - Answers Predictive testing
What is predisposition? - Answers Does not indicate a 100% risk of developing the condition
Example: Testing for a BRCA1 gene mutation to determine susceptibility to cancer breast
What is presymptomatic testing? - Answers If the gene mutation for HD is present, symptoms of HD are
certain to appear if the individual lives long enough
What is alhpa-fetoprotein? - Answers Blood sample to evaluate plasma protein that is produced by the
fetal liver, yolk sac, and gastrointestinal tract, and crosses from the amniotic fluid into the maternal
blood
What is amniocentesis? - Answers Amniotic fluid aspirated from the amniotic sac/Procedure used to
take out a small sample of the amniotic fluid for testing
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