The nurse is providing care for a client with a draining postoperative wound infected with methicillin-resistant Staphylococcus aureus (MRSA). Which is the most important action for the nurse to take?
- A. Encourage increased oral fluids.
- B. Provide high-protein snacks.
- C. Change the wound dressing.
- D. Administer prescribed antibiotics.
Correct Answer: D
Rationale: Administering prescribed antibiotics is crucial in treating MRSA infections. MRSA is a type of bacteria that is resistant to many antibiotics, including methicillin. Therefore, prompt administration of the appropriate antibiotics is essential to target the MRSA infection effectively. Encouraging increased oral fluids (Choice A) and providing high-protein snacks (Choice B) may be beneficial for overall recovery but are not the most important actions in treating an MRSA infection. Changing the wound dressing (Choice C) is important for wound care but does not directly address the infection caused by MRSA.
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A client with a history of congestive heart failure is prescribed digoxin (Lanoxin). Which assessment is most important for the nurse to obtain before administering this medication?
- A. Blood pressure
- B. Heart rate
- C. Respiratory rate
- D. Oxygen saturation
Correct Answer: B
Rationale: The correct answer is B: Heart rate. Before administering digoxin to a client with a history of congestive heart failure, the nurse must assess the client's heart rate. Digoxin can cause bradycardia, so monitoring the heart rate is crucial to prevent potential complications. Assessing blood pressure, respiratory rate, and oxygen saturation are important assessments but are not as directly influenced by digoxin as heart rate is in this scenario. Blood pressure can be affected by various factors, including dehydration or other medications. Respiratory rate and oxygen saturation are more related to respiratory function and gas exchange, which are not the primary concerns when administering digoxin to a client with heart failure.
When reconstituted, how many milligrams are in each milliliter of solution?
- A. 300 mg/mL
- B. 350 mg/mL
- C. 450 mg/mL
- D. 400 mg/mL
Correct Answer: D
Rationale: After reconstitution, the concentration of the cefazolin solution is 400 mg/mL. This calculation is derived by dividing the total milligrams in the vial (1000 mg) by the total volume after reconstitution (2.5 mL). Therefore, each milliliter of the solution contains 400 mg of cefazolin. Choices A, B, and C are incorrect as they do not match the correct calculation based on the information provided.
The nurse is teaching a client with hypertension about lifestyle modifications. Which recommendation is most effective for lowering blood pressure?
- A. Increase intake of red meat
- B. Engage in regular physical activity
- C. Consume a high-sodium diet
- D. Limit fluid intake to 1 liter per day
Correct Answer: B
Rationale: Engaging in regular physical activity is a highly effective recommendation for lowering blood pressure and improving overall cardiovascular health. Regular exercise helps to strengthen the heart, improve blood circulation, and manage weight, all of which contribute to reducing blood pressure levels. Choices A, C, and D are incorrect. Increasing intake of red meat can lead to higher saturated fat consumption, which is detrimental to heart health. Consuming a high-sodium diet can exacerbate hypertension by increasing blood pressure. Limiting fluid intake to 1 liter per day may lead to dehydration and is not a recommended approach for managing hypertension.
A client with chronic kidney disease (CKD) is receiving erythropoietin therapy. What is the primary purpose of this medication?
- A. To lower blood pressure
- B. To improve appetite
- C. To increase red blood cell production
- D. To reduce fluid retention
Correct Answer: C
Rationale: The correct answer is C: 'To increase red blood cell production.' Erythropoietin stimulates the production of red blood cells to treat anemia associated with CKD. Choices A, B, and D are incorrect because erythropoietin therapy is primarily used to address anemia by increasing the production of red blood cells rather than lowering blood pressure, improving appetite, or reducing fluid retention.
A client with a diagnosis of osteoporosis is prescribed alendronate (Fosamax). What is the most important instruction the nurse should provide?
- A. Take the medication in the morning on an empty stomach.
- B. Take the medication at bedtime.
- C. Remain upright for at least 30 minutes after taking the medication.
- D. Take the medication with a full glass of water.
Correct Answer: D
Rationale: The most important instruction the nurse should provide to a client prescribed alendronate (Fosamax) for osteoporosis is to take the medication with a full glass of water. This is crucial to help prevent esophageal irritation. Option A is correct as alendronate should be taken in the morning on an empty stomach. Option C is incorrect because the client should remain upright for at least 30 minutes after taking the medication, not lie down. Option B is incorrect and a duplicate of Option A.