Nursing Elites

1. A 35-year-old man presents with fatigue, weight loss, and hyperpigmentation of the skin. Laboratory tests reveal hyponatremia, hyperkalemia, and low cortisol levels. What is the most likely diagnosis?

• A. Cushing's syndrome
• B. Addison's disease
• C. Hypothyroidism
• D. Pheochromocytoma

Correct answer: B

Rationale: The clinical presentation of a 35-year-old man with fatigue, weight loss, hyperpigmentation of the skin, hyponatremia, hyperkalemia, and low cortisol levels is classic for Addison's disease. These findings are consistent with primary adrenal insufficiency, where the adrenal glands fail to produce adequate cortisol. In Addison's disease, the adrenal cortex is damaged, leading to decreased cortisol production and elevated levels of ACTH. This results in symptoms such as fatigue, weight loss, and hyperpigmentation due to increased ACTH production stimulating melanocytes. Hyponatremia and hyperkalemia are common electrolyte abnormalities seen in Addison's disease due to aldosterone deficiency. Therefore, the correct diagnosis in this case is Addison's disease.

2. A patient with chronic kidney disease (CKD) is prescribed erythropoietin. What is the primary action of this medication?

• A. Stimulate white blood cell production
• B. Increase platelet count
• C. Promote red blood cell production
• D. Enhance clotting factor production

Correct answer: C

Rationale: Erythropoietin primarily stimulates the bone marrow to produce more red blood cells, which helps to improve oxygen delivery to tissues. In chronic kidney disease, patients often develop anemia due to reduced erythropoietin production by the kidneys. By administering exogenous erythropoietin, the deficient hormone is replaced, leading to an increase in red blood cell production and subsequently improving the oxygen-carrying capacity of the blood.

3. The client with chronic kidney disease (CKD) is receiving hemodialysis. Which finding should be reported to the healthcare provider immediately?

• A. Blood pressure of 150/90 mm Hg.
• B. Weight gain of 2 pounds since the last dialysis session.
• C. Blood glucose level of 120 mg/dl.
• D. Potassium level of 6.5 mEq/L.

Correct answer: D

Rationale: A potassium level of 6.5 mEq/L is dangerously high, a condition known as hyperkalemia, which can lead to severe cardiac complications like arrhythmias and cardiac arrest. Immediate medical intervention is necessary to lower potassium levels to prevent life-threatening outcomes in clients undergoing hemodialysis.

4. A patient with chronic kidney disease (CKD) is prescribed calcium acetate. What is the primary purpose of this medication?

• A. Treat hyperkalemia
• B. Reduce phosphate levels
• C. Lower blood pressure
• D. Increase hemoglobin levels

Correct answer: B

Rationale: The primary purpose of prescribing calcium acetate to a patient with chronic kidney disease (CKD) is to reduce phosphate levels. Calcium acetate binds to dietary phosphate, preventing its absorption and helping to manage hyperphosphatemia commonly seen in CKD patients.

5. A patient who is receiving chemotherapy for breast cancer develops thrombocytopenia. What should the nurse include in the care plan?

• A. Encourage light exercise.
• B. Avoid intramuscular injections.
• C. Do not administer aspirin.
• D. Use a soft toothbrush for oral care.

Correct answer: B

Rationale: Thrombocytopenia is a condition characterized by a low platelet count, which can lead to an increased risk of bleeding. To minimize this risk, patients with thrombocytopenia should avoid activities that can cause injury or bleeding, such as intramuscular injections. Encouraging light exercise can be beneficial, as it promotes circulation without increasing the risk of trauma. However, avoiding intramuscular injections is crucial to prevent bleeding episodes. Aspirin should be avoided as it can further impair platelet function, exacerbating the condition. Using a soft toothbrush for oral care is recommended to prevent gum bleeding in patients with thrombocytopenia.

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