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A client, at 6 weeks gestation, arrives at the OB clinic for her initial visit and requests to hear the fetal heartbeat.
What should the nurse include in the teaching regarding cardiac development?

A.

The fetal heartbeat can be heard via Doppler by 4 weeks of pregnancy.

B.

The fetal heartbeat can be heard by external Doppler around 10-12 weeks of pregnancy.

C.

You will first feel your baby move in week 24 of pregnancy.

D.

The heart formation begins in week 5 of pregnancy and we can hear it by Doppler at 6 weeks.

Answer and Explanation

The Correct Answer is B

Choice A rationale

The fetal heartbeat cannot typically be heard via Doppler as early as 4 weeks of pregnancy. At this stage, the heart is still developing, and it is too soon for external detection with a Doppler device.

 

Choice B rationale

The fetal heartbeat is generally detectable by an external Doppler device around 10-12 weeks of pregnancy. This is the period when the heartbeat is strong enough to be picked up by the device.

 

Choice C rationale

Feeling the baby move, known as "quickening," typically occurs around 18-24 weeks of pregnancy, not 6 weeks. This sensation is different from hearing the heartbeat.

 

Choice D rationale

While the heart begins to form around week 5, it is not detectable by Doppler at 6 weeks. The technology does not have the sensitivity to detect such an early heartbeat externally.


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View Related questions

Correct Answer is B

Explanation

Choice A rationale

Open heart surgery is unrelated to the development of vaginal fistulas.

Choice B rationale

Tissue trauma from childbirth can cause vaginal fistulas, as prolonged labor or obstetric interventions can damage vaginal tissue and lead to fistula formation.

Choice C rationale

Diabetes mellitus does not directly cause vaginal fistulas, although it can affect overall tissue health and healing.

Choice D rationale

Preeclampsia, while a serious pregnancy complication, is not a direct cause of vaginal fistulas.

Correct Answer is B

Explanation

Choice A rationale

Hyperbilirubinemia presents with jaundice (yellowing of the skin and eyes) and is caused by excess bilirubin in the blood. It doesn't typically involve a high-pitched cry, increased

muscle tone, or projectile vomiting.

Choice B rationale

Neonatal abstinence syndrome occurs in newborns exposed to addictive opiate drugs while in the mother’s womb. Symptoms include high-pitched crying, increased muscle tone,

yawning, poor feeding with vomiting, and tachypnea due to drug withdrawal.

Choice C rationale

Respiratory distress syndrome is primarily characterized by breathing difficulties, including rapid, shallow breathing and a grunting sound. Symptoms do not typically include high-

pitched cry or projectile vomiting.

Choice D rationale

Necrotizing enterocolitis involves severe inflammation and necrosis of the intestines. Symptoms include abdominal distension, vomiting bile, bloody stools, and apnea but not a high-

pitched cry or increased muscle tone.

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