ATI RN
Pathophysiology Practice Questions
1. A 45-year-old woman presents with fatigue, weight gain, and cold intolerance. Her thyroid function tests reveal low T3 and T4 levels and elevated TSH levels. Which of the following is the most likely diagnosis?
- A. Hyperthyroidism
- B. Hypothyroidism
- C. Euthyroid sick syndrome
- D. Subclinical hyperthyroidism
Correct answer: B
Rationale: The scenario describes a 45-year-old woman with fatigue, weight gain, cold intolerance, low T3 and T4 levels, and elevated TSH levels, which are indicative of hypothyroidism. In hypothyroidism, there is decreased production of thyroid hormones (T3 and T4) leading to elevated TSH levels as the pituitary gland tries to stimulate the thyroid gland to produce more hormones. Therefore, the correct answer is hypothyroidism (Choice B). Choice A, Hyperthyroidism, is incorrect as the patient's symptoms and thyroid function tests point towards decreased thyroid hormone levels, which is characteristic of hypothyroidism, not hyperthyroidism. Choice C, Euthyroid sick syndrome, is incorrect because this condition typically presents with normal to low T3 and T4 levels in the setting of non-thyroid illness, unlike the elevated TSH levels observed in this case. Choice D, Subclinical hyperthyroidism, is also incorrect as the patient has low T3 and T4 levels, which is not consistent with hyperthyroidism, whether clinical or subclinical.
2. A woman has been prescribed Climara, a transdermal estradiol patch. Which of the following should she be instructed by the nurse regarding the administration?
- A. Avoid prolonged sun exposure at the patch site due to increased plasma concentrations.
- B. The application of heat at the patch site will decrease effectiveness and result in pregnancy.
- C. The medication, when exposed to sunlight, can increase the risk of breast cancer.
- D. Exposure of the medication to occasional cold will increase effectiveness with application.
Correct answer: A
Rationale: The correct answer is A. The Climara patch delivers estradiol transdermally, and patients should be instructed to avoid prolonged sun exposure at the patch site due to increased plasma concentrations. Sun exposure can accelerate the absorption of the medication, leading to higher systemic levels than intended. Choices B, C, and D are incorrect because heat at the patch site does not result in pregnancy but may alter absorption rates, there is no direct link between sunlight exposure and breast cancer risk related to this medication, and exposure to cold does not increase effectiveness of the transdermal patch.
3. When preparing to administer parenteral acyclovir (Zovirax) to an 80-year-old patient with chronic renal failure and herpes simplex, what would the nurse expect in regard to the dose?
- A. The dose is smaller due to the herpes simplex infection.
- B. The dose is smaller based on the patient's kidney function.
- C. The dose is higher in treating genital herpes.
- D. The dose is higher if the creatinine clearance is above 4.0 mg/dL.
Correct answer: B
Rationale: In patients with chronic renal failure, especially in older adults, dosages of medications excreted renally need to be adjusted based on kidney function. Acyclovir is primarily eliminated by the kidneys, so in a patient with chronic renal failure, the dose would need to be smaller to prevent drug accumulation and toxicity. Choice A is incorrect because the dose adjustment is more related to the patient's kidney function than the presence of herpes simplex. Choice C is incorrect because the type of herpes infection does not determine the dose adjustment for acyclovir. Choice D is incorrect as the creatinine clearance is a more accurate measure of kidney function compared to creatinine levels.
4. Nurse Isabelle enters the room of a client with a cognitive impairment disorder and asks what day of the week it is, what the date, month, and year are, and where the client is. The nurse is attempting to assess:
- A. confabulation.
- B. delirium.
- C. orientation.
- D. perseveration.
Correct answer: C
Rationale: The correct answer is C: "orientation." Nurse Isabelle is assessing the client's orientation by asking questions about time (day, date, month, year), place, and person. This assessment helps determine the client's awareness of their surroundings and situation. Confabulation (choice A) is the unintentional fabrication of details or events to fill in memory gaps and is not being assessed in this scenario. Delirium (choice B) is a state of acute confusion and disorientation, usually with a rapid onset, which is different from assessing orientation. Perseveration (choice D) refers to the persistent repetition of a response, statement, or behavior and is not the focus of the assessment being conducted by Nurse Isabelle in this situation.
5. Nurse Sharie is assessing a parent who abused her child. Which of the following risk factors would the nurse expect to find in this case?
- A. Flexible role functioning between parents
- B. History of the parent having been abused as a child
- C. Single-parent home situation
- D. Presence of parental mental illness
Correct answer: B
Rationale: The correct answer is B: 'History of the parent having been abused as a child.' Research shows that a history of being abused as a child is a significant risk factor for child abuse. This cycle of abuse can sometimes continue from one generation to the next. Choices A, C, and D are incorrect. Flexible role functioning between parents, a single-parent home situation, and the presence of parental mental illness are important factors to consider in various contexts but may not specifically indicate a higher likelihood of child abuse in this case.
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