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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 A

Explanation

Choice A rationale

Pelvic pain and fatigue can be indicators of endometritis, an infection of the uterine lining. It often manifests with pain, fever, and general malaise, and requires further evaluation and intervention.

Choice B rationale

Light amount of dark red lochia with a bloody odor is a normal postpartum finding. Lochia progresses through different stages, and dark red lochia, which occurs in the later stages, typically has a bloody odor.

Choice C rationale

Hematuria, or the presence of blood in the urine, is not a typical symptom of endometritis. It may indicate a urinary tract infection or other renal issues instead.

Choice D rationale

A localized area of breast tenderness may indicate mastitis, an infection of the breast tissue. It is not related to endometritis but requires attention and treatment.

Correct Answer is B

Explanation

Choice A rationale

Prolapsed cord involves the umbilical cord descending into the birth canal ahead of the fetus, which is a critical emergency but presents differently, typically with changes in fetal

heart rate and the cord being palpable or visible.

Choice B rationale

Abruptio placentae is characterized by the premature separation of the placenta from the uterine wall, which can cause severe abdominal pain, vaginal bleeding, and is a medical

emergency requiring immediate intervention to prevent maternal and fetal complications.

Choice C rationale

Placenta previa involves the placenta partially or completely covering the cervical opening, which can cause painless vaginal bleeding but does not typically present with severe

abdominal pain.

Choice D rationale

Incompetent cervix is associated with painless cervical dilation and potential preterm labor but not typically with severe abdominal pain and acute vaginal bleeding as seen with

abruptio placentae

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