ATI RN
ATI Pathophysiology Exam 3
1. Which of the following would the nurse see in a client with thrombocytopenia?
- A. A decreased platelet cell count
- B. Decreased white blood cell count
- C. Increased red blood cell count
- D. An increased platelet cell count
Correct answer: A
Rationale: Thrombocytopenia is characterized by a decreased platelet cell count, leading to an increased risk of bleeding. Therefore, the correct answer is A. Choice B, a decreased white blood cell count, is not typically associated with thrombocytopenia. Choice C, an increased red blood cell count, is not a characteristic finding in thrombocytopenia. Choice D, an increased platelet cell count, is the opposite of what is observed in thrombocytopenia.
2. A patient is being treated with amphotericin B. Which of the following statements indicates that the patient has understood the patient teaching?
- A. “The medication may cause diabetes.”
- B. “The medication will cause liver necrosis.”
- C. “The medication may cause kidney damage.”
- D. “The medication will cause pancreatitis.”
Correct answer: C
Rationale: The correct answer is C: 'The medication may cause kidney damage.' Amphotericin B is known for its potential to cause nephrotoxicity, which can manifest as kidney damage. It is crucial for the patient to be aware of this possible adverse effect. Choices A, B, and D are incorrect because amphotericin B is not typically associated with causing diabetes, liver necrosis, or pancreatitis. Therefore, these statements do not reflect an accurate understanding of the medication's side effects.
3. Which of the following is a characteristic of disseminated intravascular coagulation (DIC)?
- A. Simultaneous stroke and heart attack
- B. Simultaneous clotting and bleeding
- C. Simultaneous clotting and insulin release
- D. Simultaneous bleeding and vomiting
Correct answer: B
Rationale: Disseminated intravascular coagulation (DIC) is characterized by simultaneous clotting and bleeding throughout the body. This imbalance in the body's clotting system leads to the formation of blood clots in small blood vessels, which can consume clotting factors and platelets, ultimately leading to excessive bleeding. Choices A, C, and D are incorrect because they do not describe the characteristic feature of DIC, which involves both clotting and bleeding.
4. A school nurse is meeting with a high school student who mentions that she is frustrated with her repeated outbreaks of cold sores. The student states that she tried an over-the-counter topical cream but that it failed to produce an appreciable improvement. The nurse should recognize that this student used what medication?
- A. Ganciclovir
- B. Valacyclovir (Valtrex)
- C. Famciclovir (Famvir)
- D. Docosanol (Abreva)
Correct answer: D
Rationale: The correct answer is D: Docosanol (Abreva). Docosanol is an over-the-counter topical cream commonly used to treat cold sores caused by the herpes simplex virus. It works by inhibiting viral fusion to host cell membranes, reducing the spread of the virus. Ganciclovir (Choice A) is an antiviral medication used for the treatment of cytomegalovirus infections. Valacyclovir (Choice B) and Famciclovir (Choice C) are prescription antiviral medications used to treat herpes simplex virus infections but are not typically available over-the-counter like Docosanol.
5. A tension pneumothorax requires a needle thoracostomy and/or chest tube placement as treatment to which component of the pathophysiology of the condition?
- A. An accumulation of blood in the pleural space, which makes it difficult for the lungs to exchange gases.
- B. Extreme pain caused by a fractured rib
- C. A large accumulation of trapped air in the pleural space affecting both the lungs and heart.
- D. Sudden failure of the respiratory system due to fluid accumulation in the alveoli
Correct answer: C
Rationale: A tension pneumothorax is characterized by a large accumulation of trapped air in the pleural space, creating pressure that affects both the lungs and heart. This condition can lead to life-threatening consequences by shifting mediastinal structures and impairing cardiac function. Treatment involves decompressing the trapped air to relieve the tension. Choices A, B, and D are incorrect as they do not describe the primary pathophysiological mechanism of tension pneumothorax, which is the accumulation of air in the pleural space, not blood, rib fractures, or alveolar fluid accumulation.
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