ATI RN
ATI Pathophysiology Exam 1
1. What causes type I diabetes?
- A. Overproduction of insulin from the beta cells of the pancreas
- B. Destruction of the beta cells within the pancreas, resulting in an inability to produce insulin
- C. Loss of insulin receptors on the target cells, resulting in insulin resistance
- D. A pituitary tumor in the brain, resulting in increased antidiuretic hormone production
Correct answer: B
Rationale: Type I diabetes is caused by the destruction of the beta cells in the pancreas, leading to an inability to produce insulin. This results in a lack of insulin, leading to hyperglycemia. Choice A is incorrect as type I diabetes is characterized by a deficiency of insulin production, not overproduction. Choice C describes the pathophysiology of type 2 diabetes, where insulin receptors become less responsive to insulin. Choice D is unrelated to type I diabetes as it describes a pituitary tumor causing increased antidiuretic hormone production.
2. A patient is taking alendronate (Fosamax) for osteoporosis. What instructions should the nurse provide to ensure the effectiveness of the medication?
- A. Take the medication with a full glass of water and remain upright for at least 30 minutes.
- B. Take the medication at bedtime to ensure absorption during sleep.
- C. Take the medication with milk to enhance calcium absorption.
- D. Take the medication with food to prevent nausea.
Correct answer: A
Rationale: The correct answer is A. Alendronate should be taken with a full glass of water, and patients should remain upright for at least 30 minutes to prevent esophageal irritation and ensure proper absorption. Taking the medication at bedtime (choice B) is not recommended as it can lead to esophageal irritation when lying down. Taking the medication with milk (choice C) is incorrect as it may interfere with the absorption of alendronate. Taking the medication with food (choice D) is not recommended as it may reduce the effectiveness of the medication.
3. What is the best way to prevent transmission of infectious agents?
- A. Take antibiotics daily
- B. Call the practitioner for herbal supplements
- C. Wash hands
- D. Avoid public areas as much as possible
Correct answer: C
Rationale: The correct answer is C: Wash hands. Washing hands is the most effective way to prevent the transmission of infectious agents. Antibiotics are not effective in preventing infections, and their overuse can lead to antibiotic resistance. Calling a practitioner for herbal supplements is not a primary method for preventing the transmission of infectious agents. Avoiding public areas entirely is impractical and not as effective as proper hand hygiene.
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 patient is starting on finasteride (Proscar) for the treatment of benign prostatic hyperplasia (BPH). What should the nurse include in the patient teaching?
- A. The medication will cure BPH after treatment is complete.
- B. The effects of the medication may take several weeks or months to become noticeable.
- C. The medication may cause increased hair growth.
- D. The medication may decrease libido.
Correct answer: B
Rationale: The correct answer is B. The effects of finasteride in treating BPH may take several weeks or months to become noticeable. It is important for the nurse to educate the patient about this expected time frame to manage expectations. Choice A is incorrect because finasteride does not cure BPH but helps in managing symptoms. Choice C is incorrect as one of the side effects of finasteride is decreased hair growth. Choice D is incorrect as finasteride may cause a decrease in libido as a side effect.
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