With regard to the estimation and interpretation of the recurrence of risks for genetic disorders, nurses should be aware that:

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Conception and Fetal Development NCLEX Questions Quizlet Questions

Question 1 of 5

With regard to the estimation and interpretation of the recurrence of risks for genetic disorders, nurses should be aware that:

A. With a dominant disorder, the likelihood of the second child also having the condition is 100%. B. An autosomal recessive disease carries a one in eight risk of the second child also having the disorder. C. Disorders involving maternal ingestion of drugs carry a one in four chance of being repeated in the second child. D. The risk factor remains the same no matter how many affected children are already in the family.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

The ___ is/are responsible for oxygen and carbon dioxide transport to and from the maternal bloodstream.

A. Decidua basalis. B. Blastocyst. C. Germ layer. D. Chorionic villi.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

The most basic information a maternity nurse should have concerning conception is that:

A. Ova are considered fertile 48 to 72 hours after ovulation. B. Sperm remain viable in the woman's reproductive system for an average of 12 to 24 hours. C. Conception is achieved when a sperm successfully penetrates the membrane surrounding the ovum. D. Implantation in the endometrium occurs 6 to 10 days after conception.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Many parents-to-be have questions about multiple births. Maternity nurses should be able to tell them that:

A. Twinning and other multiple births are increasing because of the use of fertility drugs and delayed childbearing. B. Dizygotic twins (two fertilized ova) have the potential to be conjoined twins. C. Fraternal twins are same gender, usually male. D. Identical twins are more common in white families.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

The placenta allows exchange of oxygen, nutrients, and waste products between the mother and fetus by:

A. Contact between maternal blood and fetal capillaries within the chorionic villi. B. Interaction of maternal and fetal pH levels within the endometrial vessels. C. A mixture of maternal and fetal blood within the intervillous spaces. D. Passive diffusion of maternal carbon dioxide and oxygen into the fetal capillaries.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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