Nursing Elites

1. What is one of the roles of the oxytocin hormone?

• A. Stimulates milk ejection.
• B. Stimulates the production of milk.
• C. Stimulates the development of lactoferrin.
• D. Stimulates the secretion of relaxin.

Correct answer: A

Rationale: The correct answer is A: 'Stimulates milk ejection.' Oxytocin is responsible for contracting the muscles around the milk ducts, pushing milk into the nipples for breastfeeding. This process is known as milk ejection or let-down. The other choices are incorrect because oxytocin's primary function is to facilitate milk ejection rather than directly stimulating the production of milk, the development of lactoferrin, or the secretion of relaxin.

2. At what age does the first menstrual period typically occur?

• A. 9 and 15 years
• B. 2 and 10 years
• C. 1 and 5 years
• D. 18 and 20 years

Correct answer: A

Rationale: The first menstrual period, known as menarche, typically occurs between the ages of 9 and 15 years. This marks the onset of puberty in females. Choices B, C, and D are incorrect because the first menstrual period does not occur as early as 2 years old, 1 year old, or as late as 18 to 20 years old.

3. Which hormone is released from the testes?

• A. Progesterone
• B. Vasopressin
• C. Testosterone
• D. None of the above

Correct answer: C

Rationale: The correct answer is testosterone. Testosterone is the primary male sex hormone produced in the testes. Progesterone is a female sex hormone primarily produced in the ovaries, not in the testes. Vasopressin is a hormone released by the pituitary gland to regulate water balance in the body, not produced by the testes. Therefore, choices A, B, and D are incorrect.

4. What should be included in the differential diagnosis of ectopic pregnancy?

• A. Inevitable abortion
• B. Dysmenorrhea
• C. Twisted ovarian cyst
• D. Fibroids

Correct answer: C

Rationale: In the differential diagnosis of ectopic pregnancy, conditions such as twisted ovarian cysts should be considered. Twisted ovarian cysts can present with similar symptoms to ectopic pregnancy, making it important to include them in the differential diagnosis. Choices A, B, and D are not typically part of the differential diagnosis of ectopic pregnancy. Inevitable abortion refers to an imminent miscarriage, dysmenorrhea is characterized by painful menstruation, and fibroids are benign growths in the uterus, none of which are directly related to ectopic pregnancy.

5. The _________ is a temporary organ that connects a mammalian mother to its foetus.

• A. Placenta
• B. Chorion
• C. Endometrium
• D. None of the above

Correct answer: A

Rationale: The correct answer is A: Placenta. The placenta is a temporary organ that connects a mammalian mother to its foetus. It plays a crucial role in facilitating the exchange of nutrients, oxygen, and waste between the mother and the developing baby. Choice B, Chorion, is incorrect as it is a part of the fetal membrane but not the organ that connects the mother to the fetus. Choice C, Endometrium, is incorrect as it is the lining of the uterus where implantation occurs but is not the organ responsible for connecting the mother to the fetus. Choice D, None of the above, is incorrect as the placenta specifically fits the description provided in the question.

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