Fetal circulation includes 3 shunts. Match each shunt to its physiologic action. Foramen ovale

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Question 1 of 5

Fetal circulation includes 3 shunts. Match each shunt to its physiologic action. Foramen ovale

A. Connects the pulmonary artery and the aorta, bypassing the lungs. B. Connects the right and left atria. C. Connects the right and left ventricles. D. Allows the umbilical vein to bypass the liver to flow into the inferior vena cava.

Correct Answer: B

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

Question 2 of 5

Choose appropriate client teaching related to maternal serum alpha-fetoprotein (MSAFP) analysis.

A. Abnormal MSAFP levels should be followed by more specific tests. B. High MSAFP levels are usually associated with chromosome abnormalities. C. Having MSAFP testing eliminates the need to perform an ultrasound examination. D. The initial MSAFP testing will be performed at 12 weeks of gestation.

Correct Answer: A

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

Question 3 of 5

A father and mother are carriers of phenylketonuria (PKU). Their 2-year-old daughter has PKU. The couple tells the nurse that they are planning to have a second baby. Because their daughter has PKU, they are sure that their next baby won't be affected. What response by the nurse is most accurate?

A. Good planning; you need to take advantage of the odds in your favor. B. I think you'd better check with your doctor first. C. You are both carriers, so each baby has a 25% chance of being affected. D. The ultrasound indicates a boy, and boys are not affected by PKU.

Correct Answer: C

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

Question 4 of 5

A man's wife is pregnant for the third time. One child was born with cystic fibrosis, and the other child is healthy. The man wonders what the chance is that this child will have cystic fibrosis. This type of testing is known as:

A. Occurrence risk. B. Recurrence risk. C. Predictive testing. D. Predisposition testing.

Correct Answer: B

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

Question 5 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.

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