ATI RN
ATI Pathophysiology
1. A client with heart failure is experiencing pulmonary edema. Which intervention should be prioritized?
- A. Administer diuretics to reduce fluid overload.
- B. Position the client in high-Fowler's position.
- C. Administer oxygen therapy to improve oxygenation.
- D. Restrict fluid intake to prevent further fluid overload.
Correct answer: C
Rationale: In a client experiencing pulmonary edema due to heart failure, the priority intervention is to administer oxygen therapy to improve oxygenation. This helps in increasing the oxygen levels in the blood, thereby improving tissue perfusion and reducing the workload on the heart. Positioning the client in high-Fowler's position can also aid in improving oxygenation, but administering oxygen therapy directly addresses the immediate need for increased oxygen levels. Administering diuretics to reduce fluid overload and restricting fluid intake are important interventions in heart failure management, but in the acute situation of pulmonary edema, oxygen therapy takes precedence to ensure adequate oxygen supply to vital organs.
2. A 30-year-old male has been brought to the emergency department by his wife because of a severe headache, nausea, vomiting, and fever. A lumbar puncture is performed, and cerebrospinal fluid (CSF) analysis reveals a high protein count, low glucose, and numerous polymorphonuclear leukocytes (PMNs). Which organism is the most likely cause of these findings?
- A. Streptococcus pneumoniae
- B. Neisseria meningitidis
- C. Escherichia coli
- D. Listeria monocytogenes
Correct answer: A
Rationale: The cerebrospinal fluid (CSF) analysis findings of high protein count, low glucose, and numerous polymorphonuclear leukocytes (PMNs) are classic for bacterial meningitis. Among the choices, Streptococcus pneumoniae is the most likely cause in this case. Streptococcus pneumoniae is a common cause of bacterial meningitis in adults, especially presenting with symptoms such as severe headache, nausea, vomiting, and fever. Neisseria meningitidis is another common cause of bacterial meningitis but is more frequently associated with a different CSF profile. Escherichia coli is a common cause of neonatal meningitis, not typically seen in a 30-year-old male. Listeria monocytogenes is more commonly associated with meningitis in immunocompromised individuals and neonates, and typically presents differently in CSF analysis.
3. When educating a patient starting on oral contraceptives, what should the nurse include in the teaching plan regarding potential side effects?
- A. Weight gain, mood changes, and nausea
- B. Increased appetite, insomnia, and fatigue
- C. Breast tenderness, headaches, and dizziness
- D. Fatigue, hair loss, and joint pain
Correct answer: A
Rationale: The correct answer is A: Weight gain, mood changes, and nausea are common side effects of oral contraceptives. Weight gain may occur due to fluid retention or changes in metabolism. Mood changes can be caused by hormonal fluctuations. Nausea is a common side effect that usually improves after a few months of use. Choices B, C, and D are incorrect because they do not reflect common side effects associated with oral contraceptives. Increased appetite, insomnia, breast tenderness, headaches, dizziness, fatigue, hair loss, and joint pain are not typically reported side effects of oral contraceptives.
4. A patient who is being administered isoniazid (INH) for tuberculosis has a yellow color in the sclera of her eye. What other finding would lead you to believe that hepatotoxicity has developed?
- A. Diarrhea
- B. Numbness
- C. Diminished vision
- D. Light-colored stools
Correct answer: A
Rationale: The correct answer is A: Diarrhea. Hepatotoxicity caused by isoniazid can present with various symptoms, including yellow discoloration of the sclera of the eyes, which indicates jaundice. Another common sign of hepatotoxicity is gastrointestinal symptoms such as nausea, vomiting, and diarrhea, which can occur due to liver dysfunction affecting bile production and digestion. Numbness (choice B) is more commonly associated with peripheral neuropathy caused by isoniazid, while diminished vision (choice C) and light-colored stools (choice D) are not typical manifestations of hepatotoxicity.
5. Which term should the nurse use to document a situation in which cells increase in size and function?
- A. Atrophy
- B. Hypertrophy
- C. Metaplasia
- D. Hyperplasia
Correct answer: B
Rationale: Hypertrophy is the correct term used to describe the situation in which cells increase in size and function. Atrophy (Choice A) is the opposite, indicating a decrease in cell size. Metaplasia (Choice C) refers to the reversible replacement of one mature cell type by another. Hyperplasia (Choice D) involves an increase in the number of cells, not just an increase in size and function as in hypertrophy.
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