Nursing Elites

1. A client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?

• A. Blood glucose of 350 mg/dL
• B. Serum bicarbonate of 18 mEq/L
• C. Arterial pH of 7.20
• D. Serum potassium of 5.5 mEq/L

Correct answer: C

Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.

2. A client with chronic kidney disease is being assessed. Which laboratory value would be most concerning?

• A. Serum creatinine of 3.0 mg/dL
• B. Blood urea nitrogen (BUN) of 45 mg/dL
• C. Serum potassium of 6.5 mEq/L
• D. Hemoglobin of 10 g/dL

Correct answer: C

Rationale: In a client with chronic kidney disease, an elevated serum potassium level (hyperkalemia) is the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias due to its effect on the electrical conduction system of the heart. Monitoring and managing serum potassium levels are crucial in patients with chronic kidney disease to prevent serious complications. While elevated serum creatinine (Choice A) and Blood Urea Nitrogen (BUN) levels (Choice B) indicate impaired kidney function, hyperkalemia poses an immediate risk of cardiac complications. Hemoglobin levels (Choice D) are typically lower in chronic kidney disease due to decreased erythropoietin production, but they do not present an immediate life-threatening risk like hyperkalemia.

3. The client is learning about lifestyle changes to manage hypertension. Which statement by the client requires further teaching?

• A. I will reduce my salt intake.
• B. I will exercise for 30 minutes most days of the week.
• C. I will drink alcohol only on the weekends.
• D. I will monitor my blood pressure regularly.

Correct answer: C

Rationale: The correct answer is C. Clients with hypertension should ideally avoid or limit alcohol intake rather than just restricting it to weekends. Excessive alcohol consumption can raise blood pressure and interfere with the effectiveness of hypertension management. Choices A, B, and D are all positive statements that align with managing hypertension: reducing salt intake, regular exercise, and monitoring blood pressure are all beneficial lifestyle changes for individuals with hypertension. Therefore, the statement about drinking alcohol only on weekends requires further teaching to emphasize the importance of reducing alcohol consumption for better blood pressure control.

4. The nurse is preparing to administer digoxin (Lanoxin) to a client with heart failure. Which assessment finding would prompt the nurse to withhold the medication and contact the healthcare provider?

• A. Heart rate of 55 beats per minute
• B. Blood pressure of 140/90 mmHg
• C. Respiratory rate of 20 breaths per minute
• D. Blood glucose level of 150 mg/dL

Correct answer: A

Rationale: A heart rate below 60 beats per minute is a contraindication for administering digoxin, as it can lead to bradycardia. Bradycardia is a common adverse effect associated with digoxin toxicity. Blood pressure of 140/90 mmHg, respiratory rate of 20 breaths per minute, and blood glucose level of 150 mg/dL are within normal limits and would not warrant withholding the medication or contacting the healthcare provider in this context. Therefore, a heart rate of 55 beats per minute would prompt the nurse to withhold digoxin and notify the healthcare provider.

5. A client who has a new prescription for warfarin (Coumadin) is receiving discharge teaching from a nurse. Which of the following statements indicates that the client understands the teaching?

• A. I will take my warfarin at the same time every day.
• B. I should use a soft-bristled toothbrush while taking this medication.
• C. I should take my warfarin at bedtime.
• D. I should avoid eating foods high in vitamin K while taking this medication.

Correct answer: A

Rationale: The correct answer is A. Taking warfarin at the same time every day is essential to maintain a consistent blood level of the medication. This statement indicates that the client understands the teaching about the importance of consistency in medication timing. Choice B, regarding using a soft-bristled toothbrush, is not directly related to warfarin therapy and does not assess the client's understanding of warfarin administration. Choice C suggesting taking warfarin at bedtime is incorrect; it is generally recommended to take warfarin at the same time each day to avoid variations in drug levels. Choice D about avoiding foods high in vitamin K is relevant as vitamin K can interfere with warfarin's anticoagulant effects. However, it is not the best indicator of understanding the teaching on medication timing, which is crucial for warfarin efficacy.

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