A nurse is caring for a client who is at 12 weeks of gestation during an initial prenatal visit. The client asks, "What is a normal fetal heart rate?" Which of the following ranges should the nurse provide?

110 to 160/min

100 to 110/min

160 to 190/min

80 to 100/min

Answer and Explanation

The Correct Answer is A

A. 110 to 160/min is the normal range for a fetal heart rate at 12 weeks of gestation. The fetal heart rate tends to be higher early in pregnancy and stabilizes within this range by the second trimester.

B. 100 to 110/min is too low for a normal fetal heart rate.

C. 160 to 190/min is above the normal range and may suggest tachycardia, which requires further investigation.

D. 80 to 100/min is too low for a typical fetal heart rate and would be considered bradycardia, which could indicate a concern.

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Correct Answer is B

Explanation

A. If only one parent carries the dominant gene, the probability of a child inheriting it is not 25%, as this would imply a recessive-recessive pairing.

B. In a scenario where one parent is heterozygous for a dominant gene and the other has two recessive alleles, each child has a 50% chance of inheriting the dominant gene. This outcome is based on Mendelian inheritance.

C. A 75% chance would occur in a scenario involving two heterozygous parents, which is not described here.

D. 100% inheritance occurs only when one parent is homozygous dominant, which is also not indicated in this case.

A. "You should gain 11 to 20 pounds." B. "A gain of about 25 to 35 pounds is best for you and for your baby." C. "The recommendation for you is about 15 to 25 pounds." D. “It really doesn't matter exactly how much weight you gain, as long as your diet is healthy."

Correct Answer is C

Explanation

A. A weight gain of 11 to 20 pounds is recommended for those who are overweight (BMI 25-29.9) before pregnancy, but this BMI category may still be higher than 26.5.

B. A weight gain of 25 to 35 pounds is generally recommended for women with a normal BMI (18.5-24.9) before pregnancy.

C. The recommendation for you is about 15 to 25 pounds. This is the correct guideline for women with a BMI of 26.5, which places them in the overweight category. The goal is to prevent excessive weight gain while ensuring proper fetal growth.

D. It really doesn’t matter exactly how much weight you gain, as long as your diet is healthy is incorrect. Weight gain during pregnancy should be monitored carefully, as excessive weight gain can increase the risk of complications such as gestational diabetes and hypertension.

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A nurse is caring for a client who is at 12 weeks of gestation during an initial prenatal visit. The client asks, "What is a normal fetal heart rate?" Which of the following ranges should the nurse provide?

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Naxlex Comprehensive Predictor Exams

The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of children carrying the dominant gene if one parent has a dominant gene and the other parent does not?

Correct Answer is B

Explanation

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