Nokea
The middle school nurse is reviewing the phases of the endometrial cycle with a group of female students. Which statement by a student will the nurse need to correct?
- A. The proliferative phase occurs when the ovum is maturing.
- B. The expulsion phase occurs when the ovum is discharged from the ovary.
- C. The secretory phase occurs during the second half of the menstrual cycl
Correct Answer: A
Rationale: The correct answer is A. The proliferative phase occurs before ovulation when the endometrium thickens to prepare for implantation. This is not directly related to the maturation of the ovum. The other choices are incorrect because: B refers to ovulation, not expulsion of the ovum; C correctly states the secretory phase timing; D is incomplete.
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On speculum examination of the cervix, it is found to be round and smooth. These findings suggest that the patient
- A. is a multipar
- C. has had previous vaginal deliveries.
- D. is nulliparous.
Correct Answer: D
Rationale: The correct answer is D: is nulliparous. A round and smooth cervix typically indicates that the patient has not given birth before (nulliparous). This is because after vaginal deliveries, the cervix may appear irregular or have scarring. Choice A is incorrect because being a multipar (having multiple births) would likely result in changes to the cervix after birth. Choice C is incorrect because previous vaginal deliveries would usually lead to changes in the cervix as well. Choice B is incomplete and does not provide any relevant information.
Which of the following is not a function of the ovary?
- A. It produces estrogen.
- B. It produces ova.
- C. It produces follicle-stimulating hormone (FSH).
- D. All of the above are functions of the ovary.
Correct Answer: C
Rationale: The ovary does not produce FSH; this hormone is produced by the anterior pituitary.
If a pregnant woman at 38-weeks of gestation complains of dizziness when lying flat, the most likely cause is
- A. hyperventilation and shortness of breath
- B. nutritional imbalance
- C. supine hypotensive syndrome
Correct Answer: C
Rationale: Supine hypotensive syndrome occurs when the gravid uterus compresses the inferior vena cava.
The fetal/neonatal lung substance that improves pulmonary compliance by decreasing alveolar surface tension is
- A. meconium
- B. prostaglandin
- C. surfactant
Correct Answer: C
Rationale: Surfactant is a substance produced in the lungs that decreases alveolar surface tension, improving pulmonary compliance and preventing lung collapse.
Testosterone is responsible for the development of which of the following? Select all that apply.
- A. The male reproductive organs
- B. Male secondary sex characteristics
- C. Male muscle mass
- D. Male height
Correct Answer:
Rationale: Correct Answer: A, B, and C
Rationale:
A: Testosterone is crucial for the development of male reproductive organs such as the testes and prostate gland.
B: Testosterone plays a key role in the development of male secondary sex characteristics like facial hair and deepening of voice.
C: Testosterone contributes to the growth and maintenance of male muscle mass, influencing strength and physical performance.
Summary of Incorrect Choices:
D: Testosterone does not directly affect male height. Height is primarily determined by genetics and growth hormone levels.