Nokea
What is the name of the so-called ovulating hormone?
- A. Estrogen
- B. Progesterone
- C. Luteinizing hormone
- D. Follicle-stimulating hormone
Correct Answer: C
Rationale: Luteinizing hormone (LH) is known as the ovulating hormone because it triggers ovulation.
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A high blood concentration of estrogens:
- A. Stimulates endometrial glands to secrete
- B. Stimulates epithelial cells of the endometrium to proliferate
- C. Stimulates FSH secretion by the anterior pituitary
- D. Causes development of the corpus luteum
Correct Answer: B
Rationale: High levels of estrogen stimulate the proliferation of epithelial cells in the endometrium.
If a woman with flat nipples has started using a nipple shield while breastfeeding but the infant is not gaining adequate weight, the nurse should advise the woman to
- A. provide supplemental bottle feedings
- B. use the nipple shield for only 1 or 2 minutes
- C. stop breastfeeding
Correct Answer: A
Rationale: Supplementation ensures adequate nutrition until effective breastfeeding is established.
The myometrium of the uterus responds to which hormone?
- A. Prostaglandins and oxytocin
- B. Progesterone and estrogen
- C. Oxytocin, relaxin, and prostaglandin E
- D. Progesterone and testosterone
Correct Answer: A
Rationale: The correct answer is A: Prostaglandins and oxytocin. Prostaglandins and oxytocin are the primary hormones that stimulate contractions in the myometrium of the uterus during labor. Progesterone and estrogen (choice B) are involved in the menstrual cycle and maintaining pregnancy, not in uterine contractions. Oxytocin, relaxin, and prostaglandin E (choice C) have roles in labor but are not the primary hormones that directly act on the myometrium. Progesterone and testosterone (choice D) do not directly influence uterine contractions.
Which part of the uterus opens into the vagina?
- A. Fundus
- B. Cervical canal
- C. External os
- D. Internal os
Correct Answer: C
Rationale: The external os is the part of the uterus that opens into the vagina.
The neonate usually passes meconium within
- A. 6 to 8 hours
- B. 8 to 24 hours
- C. 48 to 72 hours
Correct Answer: B
Rationale: Most neonates pass meconium within the first 24 hours of life.