What is the most dangerous effect on the fetus of a mother who smokes cigarettes while pregnant?

Genetic changes and anomalies

Intrauterine growth restriction

Fetal addiction to the substance inhaled

Extensive central nervous system damage

Answer and Explanation

The Correct Answer is B

Choice A reason: Genetic changes and anomalies are not the most dangerous effect, as they are rare and not directly caused by smoking. Smoking can increase the risk of some birth defects, such as cleft lip and cleft palate, but these are not genetic changes and can be corrected by surgery. Smoking can also cause chromosomal abnormalities in the eggs, but these usually result in miscarriage or stillbirth, not live births.

Choice B reason: Maternal smoking is a significant risk factor for intrauterine growth restriction (IUGR). Nicotine and carbon monoxide from cigarettes reduce oxygen supply to the fetus, leading to lower birth weights and smaller body lengths.

Choice C reason: Fetal addiction to the substance inhaled is not the most dangerous effect, as it is not permanent and can be treated by medication and supportive care. Smoking can expose the fetus to nicotine, carbon monoxide, and other harmful chemicals, which can cross the placenta and affect the fetal brain and nervous system. Smoking can also cause withdrawal symptoms in the newborn, such as irritability, tremors, and difficulty feeding.

Choice D reason: Although prenatal exposure to smoking can affect neurodevelopment and is associated with behavioral issues, extensive central nervous system damage is not the most immediate or dangerous effect. The most critical concern remains intrauterine growth restriction.

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Correct Answer is D

Explanation

Choice A reason: Hypoinsulinemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of low insulin levels in the blood, which can cause hyperglycemia.

Choice B reason: Hypercalcemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of high calcium levels in the blood, which can cause muscle weakness, confusion, and kidney stones.

Choice C reason: Hypobilirubinemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of low bilirubin levels in the blood, which can cause pale skin and eyes.

Choice D reason: Hypoglycemia is a major neonatal complication of the infant of a diabetic mother. It is a condition of low blood sugar levels, which can cause seizures, lethargy, and brain damage.

Choice E reason: None of the above is not a correct answer. There is one major neonatal complication of the infant of a diabetic mother, which is hypoglycemia.

A. You may find that you need to modify your exercise to walking later in your pregnancy, around the seventh month. B. "Jogging is too hard on your joints; switch to walking now." C. "Stop exercising, because it will harm the fetus." D. You do not need to modify your exercising any time during your pregnancy.

Correct Answer is A

Explanation

Choice A reason: This is the best advice for the woman, as it acknowledges that jogging is safe and beneficial in early pregnancy, but also informs her that she may need to adjust her exercise intensity and duration as her pregnancy progresses. Walking is a low-impact aerobic activity that can be done throughout pregnancy, as long as there are no complications or contraindications. Walking can help maintain cardiovascular fitness, prevent excessive weight gain, and reduce the risk of gestational diabetes and preeclampsia.

Choice B reason: This is not a good advice for the woman, as it implies that jogging is harmful for her joints and that she should stop it immediately. Jogging is not necessarily bad for the joints, as long as the woman wears appropriate shoes, avoids uneven surfaces, and listens to her body. Jogging can also provide many health benefits for the woman and the fetus, such as improved mood, increased energy, and reduced stress².

Choice C reason: This is a false and alarming statement that may discourage the woman from exercising at all. Exercise during pregnancy is not dangerous for the fetus unless there are specific medical conditions or complications that prevent it. Exercise during pregnancy can improve the fetal growth, development, and oxygenation, as well as reduce the risk of preterm birth and low birth weight.

Choice D reason: This is an unrealistic and misleading statement that may cause the woman to overexert herself or ignore the signs of discomfort or fatigue. Exercise during pregnancy may need to be modified according to the woman's changing needs, abilities, and preferences. Some factors that may affect the type, frequency, intensity, and duration of exercise during pregnancy include the trimester, the fetal position, the maternal weight, the environmental temperature, and the presence of any symptoms or complications.

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What is the most dangerous effect on the fetus of a mother who smokes cigarettes while pregnant?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which major neonatal complication is carefully monitored after the birth of the infant of a diabetic mother?

Correct Answer is D

Explanation

What should the nurse tell a pregnant woman at 10 weeks of gestation who jogs 3 or 4 times per week and is concerned about the effect of exercise on the fetus?

Correct Answer is A

Explanation

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