Nursing Elites

1. A patient has acute respiratory failure (ARF). Which of the following would the nurse expect to find?

• A. Alkalosis and hyperventilation
• B. Hypoxemia and hypercapnia
• C. Alkalosis and high potassium
• D. Elevated sodium and acidosis

Correct answer: B

Rationale: In acute respiratory failure, hypoxemia (low blood oxygen) and hypercapnia (high blood carbon dioxide) are commonly observed. Choice A is incorrect because alkalosis (high pH) and hyperventilation are not typically seen in acute respiratory failure. Choice C is incorrect as it mentions alkalosis and high potassium, which are not characteristic of acute respiratory failure. Choice D is also incorrect because elevated sodium and acidosis are not typically associated with acute respiratory failure.

2. A patient suffers from dysmenorrhea. Which oral medication will be prescribed that has the ability to provide physiological actions on the neuroendocrine control of ovarian function?

• A. Estrogen
• B. Progestins
• C. Naproxen
• D. Ibuprofen

Correct answer: B

Rationale: Progestins are prescribed for dysmenorrhea as they help reduce menstrual pain by inhibiting ovulation and decreasing the production of prostaglandins. Estrogen (Choice A) is not typically used alone in dysmenorrhea treatment as it can worsen symptoms. Naproxen (Choice C) and Ibuprofen (Choice D) are nonsteroidal anti-inflammatory drugs (NSAIDs) commonly used to relieve pain associated with dysmenorrhea, but they do not directly affect the neuroendocrine control of ovarian function like progestins do.

3. A patient is prescribed raloxifene (Evista) for osteoporosis. What is the primary mechanism of action for this medication?

• A. Raloxifene decreases bone resorption, which helps to maintain or increase bone density.
• B. Raloxifene increases calcium absorption in the intestines, which helps build stronger bones.
• C. Raloxifene stimulates new bone formation by increasing osteoblast activity.
• D. Raloxifene decreases calcium excretion by the kidneys, helping to maintain bone density.

Correct answer: A

Rationale: Raloxifene decreases bone resorption, which helps to maintain or increase bone density, making it effective in the prevention and treatment of osteoporosis.

4. When the body produces antibodies against its own tissue, the condition is called:

• A. Alloimmunity
• B. Opsonization
• C. Autoimmunity
• D. Hypersensitivity

Correct answer: C

Rationale: Autoimmunity is the correct term for a condition where the body's immune system mistakenly targets its own tissues. Alloimmunity (Choice A) refers to an immune response against foreign tissue. Opsonization (Choice B) is a process where pathogens are marked for destruction by immune cells. Hypersensitivity (Choice D) involves an exaggerated immune response against antigens.

5. Which disorder is caused by a Staphylococcus aureus organism producing a toxin leading to exfoliation and large blister formation?

• A. Herpes simplex I virus
• B. Bullous impetigo
• C. Necrotizing fasciitis
• D. Cellulitis

Correct answer: B

Rationale: Bullous impetigo is the correct answer because it is caused by a Staphylococcus aureus toxin that leads to exfoliation and the formation of large blisters. Herpes simplex I virus (Choice A) causes cold sores and is not associated with exfoliation and blister formation. Necrotizing fasciitis (Choice C) is a severe skin infection involving the deeper layers of skin and subcutaneous tissues, typically caused by bacteria such as Streptococcus or Clostridium species, not Staphylococcus aureus. Cellulitis (Choice D) is a common bacterial skin infection, but it does not involve exfoliation and blister formation as seen in bullous impetigo.

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