Which maternal hormone reduces uterine contractions to prevent spontaneous abortions?

Estrogen

Testosterone

Aldosterone

Progesterone

Answer and Explanation

The Correct Answer is D

A. Estrogen plays a role in the development of the uterus and regulation of menstrual cycles, but it does not primarily reduce uterine contractions.

B. Testosterone is a male hormone and does not play a significant role in preventing uterine contractions during pregnancy.

C. Aldosterone helps regulate fluid balance and blood pressure, but it is not responsible for reducing uterine contractions during pregnancy.

D. Progesterone is the hormone primarily responsible for maintaining pregnancy by inhibiting uterine contractions, promoting uterine relaxation, and supporting the early stages of pregnancy. It plays a critical role in preventing spontaneous abortion, especially in early pregnancy.

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Correct Answer is B

Explanation

A. A decrease in saliva production may aggravate the disorder is incorrect. While excessive salivation (ptyalism) is a symptom of hyperemesis gravidarum, a decrease in saliva production is not the primary factor contributing to the disorder.

B. Decreasing gastric secretions lead to increased nausea is incorrect. While nausea and vomiting are key features of hyperemesis gravidarum, the decrease in gastric secretions does not directly cause it. The disorder is typically associated with an increase in hCG, dehydration, and electrolyte imbalances.

C. An increase in human chorionic gonadotropin (hCG) levels may contribute to this disorder is correct. Hyperemesis gravidarum is often linked to elevated levels of hCG, a hormone produced during pregnancy, which may lead to increased nausea and vomiting.

D. Symptoms begin and are most severe during the second trimester of pregnancy is incorrect. Hyperemesis gravidarum typically presents in the first trimester and may improve after that, although severe cases can last longer.

A. Lightening B. Quickening C. Ballottement D. Chloasma

Correct Answer is B

Explanation

A. Lightening refers to the sensation of the baby "dropping" into the pelvis, which typically occurs in the third trimester before labor, not at 18 weeks of gestation.

B. Quickening describes the first perception of fetal movement, often described as fluttering, and commonly occurs between 16 to 20 weeks of gestation.

C. Ballottement refers to the passive movement of the fetus when gently pushed, typically assessed during a physical examination, not a maternal sensation.

D. Chloasma is a skin change involving dark patches on the face and is unrelated to fetal movement or maternal sensations.

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Which maternal hormone reduces uterine contractions to prevent spontaneous abortions?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing teaching of a newly licensed nurse about hyperemesis gravidarum. Which of the following statements by the newly licensed nurse indicates the reinforced teaching was effective?

Correct Answer is B

Explanation

A nurse is collecting data from a client who is at 18 weeks of gestation and tells the nurse that she felt light fluttering in her stomach the previous day. The nurse should use which of the following terms to document this finding?

Correct Answer is B

Explanation

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