At her first prenatal visit, a woman and the nurse are discussing fetal development.The client asks, "When will we be able to hear the baby's heartbeat?" The nurse should reply, The fetal heartbeat can be heard with a Doppler at:
The fourth week of gestation.
The sixth week of gestation.
The seventh week of gestation.
The twelfth week of gestation.
The Correct Answer is D
Choice A rationale
The fetal heartbeat can be heard with a Doppler at the fourth week of gestation is incorrect. At this early stage, the embryonic heart has only just begun to form, and its activity cannot be detected by Doppler.
Choice B rationale
The fetal heartbeat can be heard with a Doppler at the sixth week of gestation is incorrect. Although the heart begins to beat around this time, it is usually too faint to be detected by Doppler.
Choice C rationale
The fetal heartbeat can be heard with a Doppler at the seventh week of gestation is incorrect. It remains challenging to detect the fetal heartbeat this early with standard Doppler equipment.
Choice D rationale
The fetal heartbeat can be heard with a Doppler at the twelfth week of gestation is correct. By the end of the first trimester, the fetal heart is sufficiently developed and strong enough to be detected using Doppler ultrasound, allowing healthcare providers to monitor fetal well-being.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Maintaining a folic acid intake of 4 mcg per day is not sufficient. The recommended dose for pregnant women is 400-800 mcg to help prevent neural tube defects, but it is not specifically related to reducing the risk of preterm labor.
Choice B rationale
Increasing fluid intake to 8-10 (8 oz) glasses per day is recommended as it helps to maintain hydration, which is crucial in preventing preterm labor. Dehydration can cause uterine contractions, which can lead to preterm labor.
Choice C rationale
Consuming the recommended daily allowance of vitamin C (85 mg) is important for immune function and overall health but does not directly affect the risk of preterm labor.
Choice D rationale
Increasing caloric intake by 500 calories per day is typically recommended for breastfeeding mothers, not for preventing preterm labor during pregnancy. Proper nutrition is important, but overconsumption can lead to excessive weight gain.
Correct Answer is D
Explanation
Choice A rationale
Psoriasis is a chronic skin condition that is not specific to pregnancy. It is characterized by red, scaly patches and requires medical treatment.
Choice B rationale
Jaundice, indicated by yellowing of the skin and eyes, is a sign of liver dysfunction and is not related to normal pregnancy changes.
Choice C rationale
Erythema toxicum is a common, benign rash that occurs in newborns, not in pregnant women. It appears as red spots with small pustules and resolves on its own.
Choice D rationale
Linea negra is a dark line that appears on the abdomen during pregnancy due to hormonal changes. It is a common finding in the third trimester.
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