Nursing Elites

1. A client with a history of atrial fibrillation is receiving warfarin (Coumadin) therapy. Which laboratory result indicates that the therapy is effective?

• A. International normalized ratio (INR) of 1.0.
• B. Prothrombin time (PT) of 12 seconds.
• C. Partial thromboplastin time (PTT) of 60 seconds.
• D. International normalized ratio (INR) of 2.5.

Correct answer: D

Rationale: An International Normalized Ratio (INR) of 2.5 indicates that warfarin therapy is within the therapeutic range for a client with atrial fibrillation. A lower INR (such as 1.0) would suggest subtherapeutic levels, risking blood clots. Prothrombin time (PT) and partial thromboplastin time (PTT) are not specific to monitoring warfarin therapy.

2. A client with a history of heart failure is admitted with severe dyspnea. Which laboratory result requires immediate intervention?

• A. Blood glucose of 150 mg/dL.
• B. Serum potassium of 3.5 mEq/L.
• C. Serum creatinine of 1.0 mg/dL.
• D. Blood urea nitrogen (BUN) of 20 mg/dL.

Correct answer: C

Rationale: The correct answer is C. A serum creatinine level of 1.0 mg/dL is within the normal range. However, in a client with heart failure and severe dyspnea, fluid retention is a significant concern. An elevated serum creatinine level may indicate impaired kidney function, which can worsen fluid overload. Therefore, immediate intervention is required to prevent further complications. Choices A, B, and D are within normal ranges and not indicative of immediate intervention in this scenario.

3. A client with chronic renal failure is scheduled for hemodialysis in the morning. Which pre-dialysis medication should the nurse withhold until after the dialysis treatment is completed?

• A. Calcium carbonate (Os-Cal)
• B. Furosemide (Lasix)
• C. Spironolactone (Aldactone)
• D. Multivitamins

Correct answer: B

Rationale: The correct answer is B: Furosemide (Lasix). Furosemide is a diuretic that promotes fluid loss, and giving it before hemodialysis can lead to excessive fluid loss during the treatment, potentially causing hypovolemia. Withholding furosemide until after the dialysis session helps in preventing this complication. Choices A, C, and D are incorrect because calcium carbonate, spironolactone, and multivitamins are not typically contraindicated before hemodialysis in clients with chronic renal failure.

4. The healthcare provider is preparing to administer digoxin (Lanoxin) to a client. Which assessment finding should the healthcare provider report before administering the medication?

• A. Apical pulse of 58 beats per minute.
• B. Serum potassium level of 3.0 mEq/L.
• C. Blood pressure of 140/90 mm Hg.
• D. Client reports seeing halos around lights.

Correct answer: D

Rationale: Seeing halos around lights is a classic symptom of digoxin toxicity, known as visual disturbances. This finding indicates an adverse effect of digoxin and should be reported immediately to the healthcare provider. Monitoring for visual changes is crucial as it can progress to more severe toxicity, leading to life-threatening dysrhythmias or other complications. Apical pulse, serum potassium level, and blood pressure are important assessments when administering digoxin, but the presence of visual disturbances, such as seeing halos around lights, takes precedence due to its direct association with digoxin toxicity. Changes in these other parameters should also be noted and addressed, but they are not the priority when compared to a symptom directly linked to potential toxicity.

5. A nurse starts classes for clients with type 2 diabetes. Which information would the nurse use as an outcome evaluation for the class?

• A. Parking convenience for attendees continues to be a major concern.
• B. Fasting blood glucose average readings were 20% lower by the end of classes.
• C. Discussion of food exchanges and calories was a well-attended class.
• D. Demonstrating the use of a blood glucose meter was an effective teaching strategy.

Correct answer: B

Rationale: A reduction in fasting blood glucose levels indicates the effectiveness of the diabetes management education provided. Monitoring blood glucose levels is a crucial aspect of diabetes management, and a decrease in average readings signifies improvement in managing blood sugar levels. Choices A, C, and D are not direct outcome evaluations related to the effectiveness of the education provided in managing diabetes. Parking convenience, attendance, and teaching strategies are not direct indicators of the impact on the clients' health outcomes.

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