Nursing Elites

1. The patient is taking low-dose erythromycin prophylactically and will start cefaclor for treating an acute infection. The nurse should discuss this with the provider because taking both medications simultaneously can cause which effect?

• A. Decreased effectiveness of cefaclor.
• B. Increased effectiveness of cefaclor.
• C. Decreased effectiveness of erythromycin.
• D. Increased effectiveness of erythromycin.

Correct answer: A

Rationale: When erythromycin and cefaclor are taken together, erythromycin can inhibit the metabolism of cefaclor, leading to elevated cefaclor levels and potentially causing adverse effects. This results in a decrease in the effectiveness of cefaclor. Therefore, the nurse should discuss this potential drug interaction with the provider to consider an alternative treatment or adjust the dosages to prevent complications. Choices B, C, and D are incorrect because the concern lies with the effect on cefaclor when combined with erythromycin, not the effect on erythromycin itself.

2. A patient has been taking spironolactone (Aldactone) to treat heart failure. The nurse will monitor for

• A. hyperkalemia.
• B. hypermagnesemia.
• C. hypocalcemia.
• D. hypoglycemia.

Correct answer: A

Rationale: The correct answer is A: hyperkalemia. Spironolactone is a potassium-sparing diuretic commonly used in heart failure management. One of the major side effects of spironolactone is hyperkalemia, which is an elevated level of potassium in the blood. Monitoring for hyperkalemia is crucial as it can lead to serious cardiac arrhythmias. Choices B, C, and D are incorrect. Hypermagnesemia (choice B) is not typically associated with spironolactone use. Hypocalcemia (choice C) and hypoglycemia (choice D) are also not directly linked to the use of spironolactone in heart failure treatment.

3. In a client with congestive heart failure, the nurse would be correct in withholding a dose of digoxin without specific instruction from the healthcare provider if the client's

• A. serum digoxin level is 1.5 ng/mL.
• B. blood pressure is 104/68 mmHg.
• C. serum potassium level is 3 mEq/L.
• D. apical pulse is 68/min.

Correct answer: C

Rationale: The correct answer is C. Hypokalemia can precipitate digitalis toxicity in individuals on digoxin, increasing the risk of dangerous dysrhythmias. A serum potassium level of 3 mEq/L is below the normal range (3.5 to 5.5 mEq/L) and indicates hypokalemia, which can potentiate the effects of digoxin. Choices A, B, and D are not directly related to the potential for digitalis toxicity. Serum digoxin level of 1.5 ng/mL is within the therapeutic range, blood pressure of 104/68 mmHg is not a contraindication for administering digoxin, and an apical pulse of 68/min is within the normal range and not a reason to withhold digoxin.

4. Four days following an abdominal aortic aneurysm repair, the client is exhibiting edema of both lower extremities, and pedal pulses are not palpable. Which action should the nurse implement first?

• A. Elevate extremities on pillows
• B. Evaluate edema for pitting
• C. Assess pulses with a vascular Doppler
• D. Wrap the feet with warmed blankets

Correct answer: C

Rationale: In this scenario, the priority action for the nurse is to assess pulses with a vascular Doppler. The absence of palpable pedal pulses following an abdominal aortic aneurysm repair raises concerns about compromised blood flow, which could lead to serious complications like ischemia or thrombosis. Evaluating and confirming the presence or absence of pulses is crucial to guide further interventions. Elevating extremities on pillows (Choice A) may be beneficial for managing edema, but it is not the immediate priority when pulses are not palpable. Evaluating edema for pitting (Choice B) can provide additional information about fluid status but does not address the primary concern of absent pulses. Wrapping the feet with warmed blankets (Choice D) is not appropriate in this situation and may not address the underlying vascular issue.

5. Which of the following is a common cause of chronic liver disease?

• A. Alcohol abuse.
• B. Hepatitis C infection.
• C. Obesity.
• D. Smoking.

Correct answer: B

Rationale: Hepatitis C infection is a common cause of chronic liver disease due to its long-term effects on the liver. Hepatitis C can lead to liver inflammation, fibrosis, cirrhosis, and even liver cancer. Alcohol abuse can also cause liver damage, but hepatitis C infection is specifically known for its chronic impact on liver health. Obesity and smoking, while detrimental to overall health, are not typically direct causes of chronic liver disease like hepatitis C infection.

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