Nursing Elites

1. A client with heart failure has a prescription for digoxin. The nurse is aware that sufficient potassium should be included in the diet because hypokalemia in combination with this medication:

• A. Can predispose to dysrhythmias
• B. May lead to oliguria
• C. May cause irritability and anxiety
• D. Sometimes alters consciousness

Correct answer: A

Rationale: The correct answer is A: Hypokalemia increases the risk of dysrhythmias when taking digoxin, making potassium intake crucial. Digoxin toxicity is more likely in patients with low potassium levels, leading to an increased risk of dysrhythmias. Choices B, C, and D are incorrect because hypokalemia in combination with digoxin is primarily associated with dysrhythmias rather than oliguria, irritability, anxiety, or alteration of consciousness.

2. The nurse is reviewing laboratory results on a client with acute renal failure. Which one of the following should be reported immediately?

• A. Blood urea nitrogen 50 mg/dl
• B. Hemoglobin of 10.3 g/dl
• C. Venous blood pH 7.30
• D. Serum potassium 6 mEq/L

Correct answer: D

Rationale: A serum potassium level of 6 mEq/L indicates hyperkalemia, which can be life-threatening and requires immediate intervention. Hyperkalemia can lead to dangerous cardiac arrhythmias and must be addressed promptly. The other options are not as urgent. A blood urea nitrogen level of 50 mg/dl may indicate kidney dysfunction but does not require immediate intervention. Hemoglobin of 10.3 g/dl may suggest anemia, which needs management but is not an immediate threat. A venous blood pH of 7.30 may indicate acidosis, which is concerning but not as acutely dangerous as hyperkalemia.

3. A client with diabetes mellitus has a blood glucose level of 350 mg/dL. Which of these actions should the nurse take first?

• A. Administer insulin as ordered
• B. Encourage the client to drink fluids
• C. Notify the healthcare provider
• D. Recheck the blood glucose level in 30 minutes

Correct answer: A

Rationale: Administering insulin as ordered is the priority action when a client with diabetes mellitus has a blood glucose level of 350 mg/dL. Insulin helps to lower the high blood glucose level and prevent complications such as diabetic ketoacidosis. Encouraging the client to drink fluids may be beneficial but does not address the immediate need to lower the blood glucose level. Notifying the healthcare provider and rechecking the blood glucose level can be important steps but should come after administering insulin to address the high glucose level promptly.

4. A nurse is reinforcing teaching about foods that enhance iron absorption when consumed with nonheme iron with a client who has iron deficiency anemia. Which of the following foods should the nurse include in the teaching?

• A. Tomato juice
• B. Tea
• C. Milk
• D. Dried beans

Correct answer: A

Rationale: The correct answer is A, Tomato juice. Tomato juice is high in vitamin C, which enhances the absorption of nonheme iron from foods. Vitamin C helps convert nonheme iron to a form that is easier for the body to absorb. Tea (choice B) contains tannins that can inhibit iron absorption. Milk (choice C) contains calcium, which can interfere with iron absorption. Dried beans (choice D) are a good source of nonheme iron but do not enhance iron absorption when consumed with nonheme iron.

5. A nurse is reinforcing teaching with a client who has COPD. Which of the following instructions by the nurse is appropriate?

• A. Drink carbonated beverages.
• B. Decrease fiber intake.
• C. Use bronchodilators after meals.
• D. Increase protein intake.

Correct answer: D

Rationale: The correct answer is to instruct the client to increase protein intake. This is appropriate because increasing protein intake can help maintain muscle mass and strength in clients with COPD. Option A, 'Drink carbonated beverages,' is incorrect as carbonated beverages can exacerbate COPD symptoms. Option B, 'Decrease fiber intake,' is also incorrect as fiber is important for digestion and should not be decreased unless specifically advised by a healthcare provider. Option C, 'Use bronchodilators after meals,' is incorrect because bronchodilators are typically used before meals to help open the airways for better breathing, not after meals.

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