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?
The fetal heartbeat can be heard via Doppler by 4 weeks of pregnancy.
The fetal heartbeat can be heard by external Doppler around 10-12 weeks of pregnancy.
You will first feel your baby move in week 24 of pregnancy.
The heart formation begins in week 5 of pregnancy and we can hear it by Doppler at 6 weeks.
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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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 D
Explanation
Choice A rationale
Administering the rubella vaccine during pregnancy, including the third trimester, is contraindicated due to the risk of live vaccine transmission to the fetus. It is not recommended at any stage of pregnancy.
Choice B rationale
Advising the client to get the vaccine during her next pregnancy attempt is partly correct but lacks the immediacy needed to ensure she is immune before the next pregnancy. The vaccine should be given postpartum.
Choice C rationale
Administering the vaccine immediately during pregnancy is contraindicated due to potential risks to the fetus. Rubella vaccines contain live virus, which can cause fetal harm if given during pregnancy.
Choice D rationale
It is safest to administer the rubella vaccine postpartum, prior to hospital discharge, to ensure the client has immunity before any future pregnancies. This timing prevents any risk to the current fetus and ensures future fetal protection. .