Nursing Elites

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?

• A. INR of 3.0
• B. Prothrombin time (PT) of 15 seconds
• C. Hemoglobin of 10 g/dl
• D. White blood cell count

Correct answer: A

Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.

2. A client with chronic obstructive pulmonary disease (COPD) is experiencing shortness of breath and has a prescription for oxygen therapy. What is the maximum amount of oxygen the nurse should administer without a healthcare provider's order?

• A. 2 liters per minute
• B. 4 liters per minute
• C. 6 liters per minute
• D. 8 liters per minute

Correct answer: B

Rationale: The correct answer is 4 liters per minute. Without a healthcare provider's order, the nurse should administer a maximum of 4 liters per minute of oxygen to prevent carbon dioxide retention in COPD clients. Higher flow rates can lead to oxygen toxicity and worsen the client's condition. Choices A, C, and D exceed the safe limit for oxygen administration without a healthcare provider's order.

3. The nurse is assessing a client with left-sided heart failure. Which laboratory value is most concerning?

• A. Serum creatinine of 1.5 mg/dL
• B. Serum sodium of 136 mEq/L
• C. Serum potassium of 5.5 mEq/L
• D. Hemoglobin of 12 g/dL

Correct answer: C

Rationale: A serum potassium level of 5.5 mEq/L is most concerning in a client with left-sided heart failure as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias, which can exacerbate heart failure. Serum creatinine of 1.5 mg/dL is slightly elevated but not as immediately concerning as hyperkalemia. Serum sodium of 136 mEq/L is within the normal range. Hemoglobin of 12 g/dL is also within the normal range and not directly related to the client's left-sided heart failure.

4. A client who is taking an oral dose of a tetracycline complains of gastrointestinal upset. What snack should the nurse instruct the client to take with the tetracycline?

• A. Fruit-flavored yogurt
• B. Cheese and crackers
• C. Cold cereal with skim milk
• D. Toasted wheat bread and jelly

Correct answer: D

Rationale: The correct answer is D: Toasted wheat bread and jelly. Dairy products decrease the effect of tetracycline, so the nurse should instruct the client to avoid them. Toast, which contains no dairy products, may help decrease gastrointestinal symptoms. Choices A, B, and C contain dairy products, which should be avoided when taking tetracycline.

5. A client with a history of chronic alcoholism is admitted with confusion, ataxia, and diplopia. Which nursing intervention is a priority for this client?

• A. Monitor for signs of alcohol withdrawal.
• B. Administer thiamine as prescribed.
• C. Provide a quiet environment to reduce confusion.
• D. Initiate fall precautions.

Correct answer: B

Rationale: The correct answer is to administer thiamine as prescribed. This intervention is a priority for clients with chronic alcoholism to prevent Wernicke's encephalopathy, a serious complication of thiamine deficiency. Monitoring for signs of alcohol withdrawal (choice A) is important but not the priority in this scenario. Providing a quiet environment (choice C) may be beneficial but does not address the immediate need to prevent Wernicke's encephalopathy. Initiating fall precautions (choice D) is also important but not the priority compared to administering thiamine to prevent a life-threatening condition.

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