Nursing Elites

1. A 60-year-old woman presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. What is the most likely diagnosis?

• A. Hepatitis C
• B. Primary biliary cirrhosis
• C. Hemochromatosis
• D. Wilson's disease

Correct answer: B

Rationale: The symptoms of fatigue, pruritus, jaundice, and elevated bilirubin and alkaline phosphatase levels are classic features of primary biliary cirrhosis, an autoimmune liver disease. Hepatitis C typically presents with different symptoms and findings, such as specific viral markers. Hemochromatosis and Wilson's disease involve iron overload and copper accumulation, respectively, leading to distinct clinical and laboratory findings, which do not match the presentation described in this case.

2. A 60-year-old man presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

• A. Type 1 diabetes mellitus
• B. Type 2 diabetes mellitus
• C. Diabetes insipidus
• D. Hyperthyroidism

Correct answer: A

Rationale: The presentation of a 60-year-old man with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria strongly suggests type 1 diabetes mellitus. Type 1 diabetes typically presents with acute symptoms due to absolute insulin deficiency, leading to hyperglycemia and ketonuria. Conversely, type 2 diabetes often presents more insidiously and is associated with relative insulin deficiency and insulin resistance. Diabetes insipidus, a condition characterized by excessive thirst and excretion of large amounts of dilute urine, is due to problems with antidiuretic hormone (ADH) and is not associated with hyperglycemia or ketonuria. Hyperthyroidism, while also presenting with symptoms like fatigue, does not typically manifest with hyperglycemia or ketonuria. Therefore, based on the clinical presentation and laboratory findings, the most likely diagnosis in this case is type 1 diabetes mellitus.

3. Which regimen is most effective for treating H. pylori infection?

• A. Metronidazole, bismuth subsalicylate, amoxicillin for 14 days
• B. Clarithromycin and omeprazole for 14 days
• C. Metronidazole, lansoprazole, and clarithromycin for 14 days
• D. Metronidazole, clarithromycin, and omeprazole for 7 days

Correct answer: C

Rationale: Regimen C, which consists of metronidazole, lansoprazole, and clarithromycin for 14 days, is recommended by the FDA as an effective treatment for H. pylori infection. This regimen has been shown to have a high eradication rate and is a standard recommendation in clinical practice guidelines for the management of H. pylori-related conditions.

4. A client in acute renal failure has a serum potassium level of 6.3 mEq/L. What intervention can the nurse expect the healthcare provider to prescribe?

• A. Nitrofurantoin (Macrodantin) orally.
• B. Erythropoietin (Epogen) intravenously.
• C. Kayexalate retention enema.
• D. Azathioprine (Imuran) orally.

Correct answer: C

Rationale: In acute renal failure with high serum potassium levels, the healthcare provider is likely to prescribe a Kayexalate retention enema. Kayexalate is a medication used to lower elevated potassium levels by promoting potassium excretion through the gastrointestinal tract, thus aiding in the management of hyperkalemia in clients with renal failure.

5. A client who is acutely ill has vigilant oral care included in their plan of care. What factor increases this client's risk for dental caries?

• A. Hormonal changes induced by the stress response leading to an acidic oral environment
• B. Systemic infections commonly affecting the teeth
• C. Intravenous hydration lacking fluoride
• D. Inadequate nutrition and reduced saliva production contributing to cavities

Correct answer: D

Rationale: Inadequate nutrition and decreased saliva production can lead to a conducive environment for the development of dental caries. Without proper nutrition and sufficient saliva, the protective mechanisms against cavities are compromised, making the individual more susceptible to tooth decay.

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