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. A client with atrial fibrillation is at risk for which of the following complications?
- A. Deep vein thrombosis (DVT)
- B. Pulmonary embolism
- C. Hypertensive crisis
- D. Myocardial infarction
Correct answer: B
Rationale: Corrected Rationale: A client with atrial fibrillation is at increased risk of thromboembolism due to blood stasis in the atria. This can lead to the formation of blood clots, which may travel to the lungs and cause a pulmonary embolism. Pulmonary embolism is a serious complication of atrial fibrillation. Choices A, C, and D are incorrect because while atrial fibrillation can lead to complications such as stroke or heart failure, it is specifically associated with an increased risk of pulmonary embolism due to the clot formation associated with the condition.
3. Which of the following mediates humoral immunity?
- A. Natural killer cells
- B. T cells
- C. B cells
- D. Neutrophils
Correct answer: C
Rationale: Humoral immunity is mediated by B cells, not natural killer cells, T cells, or neutrophils. B cells are responsible for producing antibodies, which are essential components of humoral immunity.
4. Which of the following is a clinical manifestation of hyperthyroidism?
- A. Tachycardia
- B. Constipation
- C. Weight gain
- D. Fatigue
Correct answer: A
Rationale: The correct answer is A: Tachycardia. Tachycardia, which is an increased heart rate, is a classic clinical manifestation of hyperthyroidism. In hyperthyroidism, there is an excess production of thyroid hormones, leading to an increased metabolic rate. This increased metabolism can cause symptoms such as a rapid heart rate. Choices B, C, and D are incorrect because constipation, weight gain, and fatigue are more commonly associated with hypothyroidism, where there is a deficiency of thyroid hormones leading to a slower metabolic rate.
5. When assessing a 7-year-old child's pain after an emergency appendectomy, what is the most appropriate tool for the nurse to use?
- A. Use a visual analog scale (VAS) to assess the pain.
- B. Ask the child to rate their pain on a scale of 0 to 10.
- C. Use the Wong-Baker FACES scale to assess the pain.
- D. Ask the parents to describe the child's pain behavior.
Correct answer: C
Rationale: The correct answer is to use the Wong-Baker FACES scale to assess the child's pain. This scale is specifically designed for children and uses facial expressions of varying intensities to help them communicate their pain levels effectively. Choices A and B may not be as suitable for a young child who may have difficulty understanding or using a numerical scale. Choice D involving parents may not provide an accurate reflection of the child's pain experience, as it is essential to assess the child's self-reporting.
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