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Maternal-Newborn Chapter 4 test bank Questions and Correct Answers.
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Maternal-Newborn Chapter 4 test bank Questions and Correct Answers.
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Maternal-Newborn Chapter 4 test bankQuestions and Correct Answers
A clinic nurse is planning a teaching session for childbearing-age female patients. Which information
should the nurse include in the teaching session with regard to avoiding exposing a fetus to teratogens?
A: eliminate use of acne medication
B: immunizations should be updated during the first rimester of pregnancy
C: use of saunas and hot hubs during pregnancy should be during the winter months only
D: alcoholic beverages can be consumed in the first and third trimesters of pregnancy - correct
answers:A: eliminate use of acne medication
Elimination of non therapeutic drugs is the best action to avoid teratogen exposure. Acne medication is
not essential during pregnancy. Immunizations for diseases such as rubella are contraindicated during
pregnancy. Use of saunas and hot tubs are not recommended because maternal hyperthermia is a
significant teratogen. Alcohol is an environmental substance known to be teratogenic and should not be
consumed during pregnancy.
The parents of a child with a karyotype of 47, XY, +21 ask the nurse what this means. Which is the most
accurate response by the nurse?
A: this karyotype is for a normal male
B: this karyotype is for a normal female
C: this karyotype is for a male with Down syndrome
D: this karyotype is for a female with Turner's syndrome - correct answers:C: this karyotype is for a male
with Down syndrome
This child is male because his chromosomes are XY. He has one extra copy of chromosome 21 (for a total
of 47, instead of 46), resulting in Down syndrome. A normal female would have 46 chromosomes and XX
for the sex chromosomes. A normal male would have 46 chromosomes. A female with Turner's
syndrome would have 45 chromosomes; the sex chromosome would have just one X.
, People who have two copies of the same abnormal autosomal dominant gene are generally:
A: mildly affected with the disorder
B: infertile and unable to transmit the gene
C: carriers of the trait but not affected with the disorder
D: more severely affected by the disorder than people with one copy of the gene - correct answers:D:
more severely affected by the disorder than people with one copy of the gene
People who have two copies of an abnormal gene are usually more severely affected by the disorder
because they have no normal gene to compensate and maintain normal function. Those mildly affected
with the disorder will have only one copy of the abnormal gene. Infertility may or may not be caused by
chromosomal defects. A carrier of a trait has one recessive gene.
An infant is born with blood type AB. The father is type A and the mother is type B. The father asks why
the baby has a blood type different from that of the parents. The nurse's answer should be based on the
knowledge that:
A: both A and B blood types are dominant
B: types A and B are recessive when linked together
C: the baby has a mutation of the parents' blood types
D: type A is recessive and links more easily with type B - correct answers:A: both A and B blood types are
dominant
Types A and B are equally dominant, and the baby can thus inherit one from each parent. Both types A
and B are dominant, not recessive. The infant has inherited both blood types from the parents and this is
not a mutation. Both blood types A and B are equally dominant.
Which statement regarding multifactorial disorders is correct?
A: they may not be evident until later in life
B: they are usually present and detectable at birth
C: the disorders are characterized by multiple defects
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