Nursing Elites

1. The healthcare provider is assessing a client with left-sided heart failure. Which laboratory value should be monitored closely?

• A. Serum sodium of 135 mEq/L
• B. Serum potassium of 4.5 mEq/L
• C. Serum creatinine of 1.8 mg/dl
• D. Serum glucose of 200 mg/dl

Correct answer: C

Rationale: In a client with left-sided heart failure, monitoring serum creatinine is crucial to evaluate kidney function and fluid balance. Elevated creatinine levels can indicate impaired kidney function, which is common in heart failure due to decreased cardiac output and renal perfusion. Serum sodium levels (choice A) are important but are more closely associated with fluid balance and heart failure exacerbation. Serum potassium (choice B) is also important to monitor, but it is more closely linked to cardiac arrhythmias rather than kidney function. Serum glucose levels (choice D) are significant but are not the priority for monitoring in left-sided heart failure.

2. A client with chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which intervention should the nurse implement first?

• A. Administer oxygen therapy as prescribed.
• B. Elevate the head of the bed.
• C. Obtain a sputum culture.
• D. Administer antibiotics as prescribed.

Correct answer: A

Rationale: The correct answer is to administer oxygen therapy as prescribed. In COPD exacerbation, the priority is to improve oxygenation. Administering oxygen therapy helps ensure an adequate oxygen supply to the body's tissues. Elevating the head of the bed can improve ventilation but is not the first intervention needed in this situation. Obtaining a sputum culture and administering antibiotics are important in COPD exacerbation but come after ensuring proper oxygenation.

3. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which laboratory value should be monitored closely?

• A. Arterial blood gas (ABG) values
• B. Serum potassium level
• C. Serum sodium level
• D. Serum magnesium level

Correct answer: B

Rationale: The correct answer is B: Serum potassium level. In COPD, especially when the client is receiving diuretics or corticosteroids, monitoring serum potassium levels is crucial. These medications can lead to potassium loss, potentially causing hypokalemia. Arterial blood gas (choice A) values are important in assessing respiratory status but are not the primary concern related to medication side effects. Serum sodium (choice C) and magnesium (choice D) levels are also important, but in the context of COPD exacerbation and medication effects, potassium monitoring takes precedence.

4. At 0600 while admitting a woman for a scheduled repeat cesarean section (C-Section), the client tells the nurse that she drank a cup of coffee at 0400 because she wanted to avoid getting a headache. Which action should the nurse take first?

• A. Ensure preoperative lab results are available
• B. Start prescribed IV with lactated Ringer's
• C. Inform the anesthesia care provider
• D. Contact the client's obstetrician

Correct answer: C

Rationale: The correct action for the nurse to take first is to inform the anesthesia care provider. The patient's ingestion of coffee violates the NPO (nothing by mouth) guidelines before surgery, which increases the risk of aspiration during anesthesia. Informing the anesthesia care provider promptly allows for appropriate assessment and decision-making regarding the patient's anesthesia plan. Ensuring preoperative lab results, starting an IV, or contacting the obstetrician can be important steps but addressing the NPO violation and its implications on anesthesia safety take precedence.

5. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. International Normalized Ratio (INR)
• B. Prothrombin time (PT)
• C. Serum sodium level
• D. Hemoglobin level of 12 g/dl

Correct answer: A

Rationale: The correct answer is A: International Normalized Ratio (INR). The INR should be closely monitored in a client receiving warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range to prevent both bleeding and clotting events. Choices B, C, and D are incorrect because while PT is used to monitor warfarin therapy, INR is a more precise indicator of therapeutic levels. Serum sodium level and hemoglobin level are not directly related to monitoring warfarin therapy.

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