Nursing Elites

1. The client with chronic obstructive pulmonary disease (COPD) is being taught pursed-lip breathing by the nurse. What is the purpose of this technique?

• A. To promote oxygenation by removing secretions.
• B. To reduce the amount of air trapped in the lungs.
• C. To increase the amount of carbon dioxide exhaled.
• D. To slow the respiratory rate and improve air exchange.

Correct answer: C

Rationale: Pursed-lip breathing is used to increase the amount of carbon dioxide exhaled (C) in clients with chronic obstructive pulmonary disease (COPD). By doing so, it helps prevent air trapping and enhances gas exchange, ultimately improving respiratory efficiency. While removing secretions (A) and reducing air trapping (B) can be associated benefits to some extent, the primary goal of pursed-lip breathing is to optimize carbon dioxide elimination and enhance breathing mechanics. Slowing the respiratory rate (D) is not the primary purpose of pursed-lip breathing.

2. A client with a diagnosis of chronic obstructive pulmonary disease (COPD) is receiving oxygen via nasal cannula at 4 liters per minute. Which assessment finding indicates a need for immediate action?

• A. The client's respiratory rate is 14 breaths per minute.
• B. The client's oxygen saturation is 92%.
• C. The client reports shortness of breath.
• D. The client's respiratory rate is 24 breaths per minute.

Correct answer: C

Rationale: A report of shortness of breath (C) indicates that the client is not tolerating the oxygen therapy well and may need an adjustment. Shortness of breath is a critical symptom in a client with COPD, as it signifies potential respiratory distress. A respiratory rate of 14 (A) is within an acceptable range for a client with COPD and does not require immediate action. An oxygen saturation of 92% (B) is slightly lower but still acceptable in COPD patients. Although a respiratory rate of 24 (D) is higher, it is not as immediately concerning as shortness of breath in this context.

3. The nurse is providing discharge teaching to a client with a new prescription for warfarin (Coumadin). Which dietary instruction should the nurse include?

• A. Avoid foods high in vitamin K
• B. Increase intake of leafy green vegetables
• C. Consume a consistent amount of foods high in potassium
• D. Limit intake of high-protein foods

Correct answer: A

Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.

4. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?

• A. Serum sodium level.
• B. Serum potassium level.
• C. Serum calcium level.
• D. Serum glucose level.

Correct answer: B

Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.

5. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?

• A. Administer regular insulin IV.
• B. Administer IV fluids at 250 ml/hr.
• C. Administer sodium bicarbonate IV push.
• D. Administer furosemide (Lasix) IV push.

Correct answer: A

Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.

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