ATI RN
ATI Pathophysiology Exam 1
1. What condition can be caused by an excessive amount of growth hormone released by the pituitary gland in childhood?
- A. Acromegaly
- B. Gigantism
- C. Syndrome of inappropriate antidiuretic hormone
- D. Dwarfism
Correct answer: B
Rationale: Gigantism is the correct answer. It is a condition caused by excessive growth hormone release before the epiphyseal plates close, leading to abnormal growth. Acromegaly (choice A) is caused by excess growth hormone after the epiphyseal plates close, resulting in enlargement of bones and tissues. Syndrome of inappropriate antidiuretic hormone (choice C) is characterized by the excessive release of antidiuretic hormone, leading to water retention and dilutional hyponatremia. Dwarfism (choice D) is a condition characterized by significantly below-average height.
2. In discussing sex hormone production with the patient, the nurse should describe that testosterone is normally secreted in response to
- A. sexual arousal.
- B. stimulation by luteinizing hormone.
- C. ACTH release by the adrenal cortex.
- D. decreased cortisol levels.
Correct answer: B
Rationale: Testosterone production is regulated by the hypothalamic-pituitary-gonadal axis. Luteinizing hormone (LH) stimulates the Leydig cells in the testes to produce testosterone. Therefore, the correct answer is B. Choice A, 'sexual arousal,' is incorrect because testosterone secretion is not directly linked to arousal but rather to hormonal stimulation. Choice C, 'ACTH release by the adrenal cortex,' is incorrect as testosterone production is not primarily regulated by adrenocorticotropic hormone (ACTH). Choice D, 'decreased cortisol levels,' is also incorrect as cortisol and testosterone are regulated by separate endocrine pathways.
3. What can multiple dark bands on the nails indicate?
- A. They are considered a normal variant.
- B. They can be associated with malignant melanoma.
- C. They are indicative of a nail fungus.
- D. They are associated with aging.
Correct answer: B
Rationale: Multiple dark bands on the nails can be associated with malignant melanoma, a serious type of skin cancer. While dark bands on the nails can sometimes be a normal variant, they should not be ignored as they could also be a sign of a serious condition like melanoma. Nail fungus typically presents with different symptoms such as thickened, discolored, or brittle nails. Dark bands on the nails are not directly associated with aging.
4. During patient teaching, a young woman asks the nurse the following question: 'If I get pregnant on the 'pill,' should I continue to take it?' What is the nurse's best response?
- A. The pill has no effect on pregnancy.
- B. The pill will cause miscarriage.
- C. This is a personal choice for each woman.
- D. The pill can be harmful to the fetus and should be discontinued.
Correct answer: C
Rationale: The correct answer is 'C: This is a personal choice for each woman.' If a woman becomes pregnant while taking birth control pills, it is generally recommended to discontinue them as they can potentially harm the fetus. However, the decision to continue or discontinue the pill in case of pregnancy is ultimately a personal choice for each woman. Choice A is incorrect because birth control pills are meant to prevent pregnancy, but if a woman becomes pregnant while taking them, the situation changes. Choice B is incorrect because birth control pills do not cause miscarriage; they are intended to prevent pregnancy. Choice D is incorrect because while it is generally advised to discontinue the pill if pregnancy occurs, the decision ultimately depends on the individual circumstances and preferences of the woman.
5. During a late-night study session, a pathophysiology student reaches out to turn the page of her textbook. Which component of her nervous system contains the highest level of control of her arm and hand action?
- A. Cerebral cortex
- B. Basal ganglia
- C. Brainstem
- D. Cerebellum
Correct answer: A
Rationale: The correct answer is A: Cerebral cortex. The cerebral cortex, particularly the motor cortex, is responsible for the voluntary control of precise movements such as turning a page. The cerebral cortex plays a crucial role in the highest level of control of motor functions, including those of the arm and hand. Choice B, Basal ganglia, is more involved in motor planning and coordination, while choice C, Brainstem, is responsible for basic life functions and reflexes. Choice D, Cerebellum, is primarily involved in coordination, precision, and accurate timing of movements, rather than the highest level of control for specific actions like page-turning.
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