When assessing the knowledge of new parents of a child born with Maple Syrup Urine Disease (MSUD), an autosomal recessive inherited disorder, which statement is true?

Only one copy of the abnormal gene is required for the disorder to be expressed.

The disorder is carried on the X chromosome.

Both genes of a pair must be abnormal for the disorder to be expressed.

The disorder occurs in males and heterozygous females.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

Incorrect. This statement describes autosomal dominant inheritance, not autosomal recessive inheritance. In autosomal dominant inheritance, only one copy of the abnormal gene is needed to cause the disorder. However, in autosomal recessive inheritance, both copies of the gene must be abnormal for the disorder to be expressed.

Choice B rationale:

Incorrect. This statement describes X-linked recessive inheritance, not autosomal recessive inheritance. In X-linked recessive inheritance, the abnormal gene is located on the X chromosome. Males have only one X chromosome, so if they inherit the abnormal gene, they will have the disorder. Females have two X chromosomes, so they must inherit two copies of the abnormal gene (one from each parent) to have the disorder.

Choice C rationale:

Correct. This statement accurately describes autosomal recessive inheritance. In autosomal recessive inheritance, both copies of the gene must be abnormal for the disorder to be expressed. This means that both parents must be carriers of the abnormal gene in order for their child to have the disorder.

Choice D rationale:

Incorrect. This statement is partially correct, but it does not fully describe autosomal recessive inheritance. The disorder can occur in both males and females, but it is not limited to heterozygous females. Homozygous females (those who have two copies of the abnormal gene) will also have the disorder.

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Correct Answer is C

Explanation

Choice A rationale:

This statement suggests that the patient has some awareness of infertility treatments, but it does not necessarily indicate a full understanding of infertility itself.

It's important to consider that a few months of trying to conceive may not be indicative of infertility, as it can take up to a year for healthy couples to achieve pregnancy.

Jumping to fertility treatments without a proper evaluation could lead to unnecessary interventions and potential financial and emotional burdens.

Choice B rationale:

This statement is incorrect. Male factor infertility is a common cause of difficulty conceiving, accounting for about 40% of infertility cases.

It's essential to evaluate both partners when assessing fertility issues.

Choice C rationale:

This statement demonstrates the patient's understanding of the relationship between age and fertility.

Female fertility gradually declines with age, especially after the age of 35, due to a decrease in the number and quality of eggs.

This awareness indicates that the patient is realistic about her chances of conceiving and is prepared to seek appropriate help if needed.

Choice D rationale:

While family history can play a role in infertility, it's not a guarantee that someone will experience the same issues as their relatives.

Each case is unique, and multiple factors can contribute to infertility, including genetics, lifestyle, medical conditions, and environmental factors.

It's important to undergo a thorough evaluation to determine the specific causes of infertility in each individual.

A. Satisfactory B. Unsatisfactory. C. Negative. D. Positive.

Correct Answer is C

Explanation

The correct answer is choice c. Negative.

Choice A rationale:

“Satisfactory” is not a standard term used to describe the results of a contraction stress test (CST). The terms typically used are “negative,” “positive,” “equivocal,” or “unsatisfactory.”

Choice B rationale:

“Unsatisfactory” is used when the test cannot be interpreted due to inadequate contractions or other technical issues. In this case, the client is experiencing contractions every three minutes, and the fetal heart rate (FHR) is being monitored effectively.

Choice C rationale:

A “Negative” CST indicates that there are no late decelerations of the FHR during contractions, suggesting that the fetus is not experiencing significant distress and is likely tolerating the contractions well.

Choice D rationale:

A “Positive” CST would indicate the presence of late decelerations of the FHR with at least 50% of contractions, suggesting fetal hypoxia and compromised placental function. Since there are no decelerations in this scenario, this choice is incorrect.

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When assessing the knowledge of new parents of a child born with Maple Syrup Urine Disease (MSUD), an autosomal recessive inherited disorder, which statement is true?

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Naxlex Comprehensive Predictor Exams

A 37-year-old patient visits her OBGYN office for a routine check-up. She mentions that she and her partner are trying to conceive. Which statement indicates that the patient understands infertility?

Correct Answer is C

Explanation

A pregnant client is undergoing a nipple-stimulated contraction stress test (CST). She is experiencing contractions every three minutes. The fetal heart rate (FHR) baseline is approximately 120 beats/min with no decelerations. How should the nurse document this test?

Correct Answer is C

Explanation

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