ATI RN
ATI Pathophysiology Exam 1
1. Which condition is characterized by a lack of antidiuretic hormone (ADH)?
- A. Diabetes mellitus
- B. Diabetes insipidus
- C. Cushing's disease
- D. Hyperthyroidism
Correct answer: B
Rationale: The correct answer is B, Diabetes insipidus. Diabetes insipidus is characterized by a lack of antidiuretic hormone (ADH), leading to excessive urination and thirst. Choice A, Diabetes mellitus, is a different condition characterized by high blood sugar levels. Choice C, Cushing's disease, is caused by prolonged exposure to high levels of cortisol. Choice D, Hyperthyroidism, involves an overactive thyroid gland producing excess thyroid hormones.
2. A client with Guillain-Barré syndrome is experiencing ascending paralysis. Which of the following interventions should the nurse prioritize?
- A. Monitor for signs of respiratory distress.
- B. Prepare the client for plasmapheresis.
- C. Administer analgesics for pain management.
- D. Initiate passive range-of-motion exercises.
Correct answer: A
Rationale: The correct answer is A: Monitor for signs of respiratory distress. In Guillain-Barré syndrome, ascending paralysis can lead to respiratory muscle involvement, putting the client at risk for respiratory distress and failure. Prioritizing respiratory monitoring is crucial to ensure timely intervention if respiratory compromise occurs. Plasmapheresis (Choice B) may be indicated in some cases to remove harmful antibodies, but the priority in this situation is respiratory support. Administering analgesics (Choice C) for pain management and initiating passive range-of-motion exercises (Choice D) are important aspects of care but are not the priority when the client's respiratory status is at risk.
3. A female patient is concerned about the side effects of oral contraceptives. What should the nurse explain as a common side effect?
- A. Increased energy levels
- B. Decreased libido
- C. Weight gain
- D. Hair loss
Correct answer: C
Rationale: The correct answer is C: Weight gain. Weight gain is a common side effect of oral contraceptives due to hormonal changes. It is essential for healthcare providers to inform patients about this possibility to manage expectations. Choice A, increased energy levels, is not a common side effect of oral contraceptives. Choice B, decreased libido, can be a side effect for some individuals but is not as common as weight gain. Choice D, hair loss, is not typically associated with oral contraceptives. Therefore, it is important for the nurse to address the patient's concerns by discussing the more prevalent side effects like weight gain.
4. A patient who is undergoing treatment for cytomegalovirus received his first dose of IV ganciclovir 3 days ago. When reviewing this patient's most recent blood work, what abnormality should the nurse most likely attribute to the use of this drug?
- A. Hemoglobin 17 g/dL (high normal)
- B. INR 3.8 (high)
- C. Platelet count 118,000/mm3 (low)
- D. Leukocytes 11,900/mm3 (high)
Correct answer: C
Rationale: The correct answer is C: Platelet count 118,000/mm3 (low). Ganciclovir, used to treat cytomegalovirus, is known to cause bone marrow suppression, leading to decreased platelet count (thrombocytopenia). This condition can increase the risk of bleeding. Choices A, B, and D are not typically associated with ganciclovir therapy. High hemoglobin levels (choice A) are not commonly seen with ganciclovir treatment. INR elevation (choice B) is associated with coagulation abnormalities, which are not a typical side effect of ganciclovir. Elevated leukocyte count (choice D) is not a common consequence of ganciclovir use.
5. Which electrolyte imbalance does the nurse suspect in a patient with hyperaldosteronism?
- A. Hyponatremia
- B. Hypernatremia
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: C
Rationale: In a patient with hyperaldosteronism, the nurse would suspect hyperkalemia. Hyperaldosteronism leads to increased potassium excretion, resulting in low potassium levels in the blood. Therefore, choices A (Hyponatremia), B (Hypernatremia), and D (Hypercalcemia) are incorrect. Hyponatremia refers to low sodium levels, Hypernatremia refers to high sodium levels, and Hypercalcemia refers to high calcium levels, none of which are typically associated with hyperaldosteronism.
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