ATI RN
Pathophysiology Practice Questions
1. A 51-year-old woman has the following clinical findings: thin hair, exophthalmos, hyperreflexia, and pretibial edema. These findings are consistent with:
- A. Subacute thyroiditis.
- B. Autoimmune thyroiditis.
- C. Graves disease.
- D. Hashimoto’s disease.
Correct answer: C
Rationale: The clinical findings of thin hair, exophthalmos, hyperreflexia, and pretibial edema are classic features of Graves disease, an autoimmune disorder that results in hyperthyroidism. Exophthalmos (bulging eyes) and pretibial edema (swelling in the lower legs) are particularly associated with Graves disease due to the autoimmune stimulation of the thyroid gland, leading to increased thyroid hormone production. Subacute thyroiditis (Choice A) typically presents with neck pain and tenderness, while autoimmune thyroiditis (Choice B) is commonly known as Hashimoto's thyroiditis, which presents with hypothyroidism symptoms. Hashimoto's disease (Choice D) is characterized by goiter and hypothyroidism, which contrasts with the hyperthyroidism seen in this patient.
2. A 30-year-old female has suffered a third-degree burn to her hand after spilling hot oil in a kitchen accident. Which teaching point by a member of her care team is most appropriate?
- A. Your hand will likely heal without the need for a skin graft.
- B. You might experience a loss of sensation in your hand after it heals.
- C. Be sure to keep your hand elevated to reduce swelling.
- D. We will need to monitor you for infection as your hand heals.
Correct answer: D
Rationale: In third-degree burns, infection is a major concern due to the extensive damage to the skin. Monitoring for infection is crucial. Choice A is incorrect because third-degree burns often require skin grafts due to the severity of the injury. Choice B is incorrect as loss of sensation is more common in nerve damage and not necessarily in burns. Choice C is incorrect because while elevation can help with swelling in minor burns, it is not the most critical concern in third-degree burns.
3. A patient is starting on a statin medication for hyperlipidemia. What critical instruction should the nurse provide?
- A. Take the medication at night to reduce the risk of muscle pain and other side effects.
- B. Take the medication in the morning with breakfast to improve absorption.
- C. Avoid alcohol consumption while taking this medication to reduce the risk of liver damage.
- D. Take the medication with a high-fat meal to increase its effectiveness.
Correct answer: A
Rationale: The correct answer is A. Statins like atorvastatin should be taken at night to reduce the risk of muscle pain and other side effects. Taking the medication with a high-fat meal (choice D) is not recommended as it can decrease the effectiveness of the medication. Alcohol consumption (choice C) should be moderated but does not need to be completely avoided unless contraindicated. Taking the medication with breakfast (choice B) may not be as effective as taking it at night due to the circadian rhythm of cholesterol synthesis.
4. An imbalance of which of the following hormones could lead to increased calcium levels in the blood?
- A. Parathyroid hormone
- B. Antidiuretic hormone
- C. Calcitonin
- D. Melatonin
Correct answer: A
Rationale: The correct answer is Parathyroid hormone (Choice A). Parathyroid hormone plays a key role in regulating calcium levels in the blood. When there is an imbalance in parathyroid hormone secretion, it can lead to increased calcium levels in the blood. Antidiuretic hormone (Choice B) is involved in regulating water balance, not calcium levels. Calcitonin (Choice C) helps lower blood calcium levels and is unlikely to cause an increase. Melatonin (Choice D) regulates sleep-wake cycles and does not have a direct effect on calcium levels in the blood.
5. Which of the following is a sign of hypoglycemia?
- A. Rapid, deep breathing
- B. Increased urination
- C. Weakness and confusion
- D. High blood pressure
Correct answer: C
Rationale: The correct answer is C: Weakness and confusion. Hypoglycemia is characterized by low blood sugar levels, leading to inadequate glucose supply to the brain, resulting in symptoms like weakness and confusion. Choices A, B, and D are incorrect. Rapid, deep breathing is not typically a sign of hypoglycemia but can be seen in other conditions like respiratory issues. Increased urination is more commonly associated with conditions like diabetes mellitus, while high blood pressure is not a typical sign of hypoglycemia.
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