After administering furosemide 20 mg PO to a client diagnosed with hypertension and peripheral edema, which finding would best indicate that the therapeutic effect of the medication has been achieved?
Blood pressure remains stable at 130/86 mmHg.
Lungs are clear to auscultation.
Serum potassium has decreased from 4.0 to 3.5 mEq/L.
Urine output increases from 30 mL per hour to 100 mL per hour.
The Correct Answer is D
Choice A Reason
While maintaining a stable blood pressure is important for a client with hypertension, furosemide is primarily a diuretic, and its therapeutic effect is to reduce fluid overload, not directly to stabilize blood pressure. Therefore, this finding alone does not best indicate the therapeutic effect of furosemide.
Choice B Reason
Clear lungs upon auscultation suggest an improvement in pulmonary edema, which can be associated with fluid overload in conditions such as heart failure. However, for a client with peripheral edema, the primary therapeutic goal of furosemide is to reduce the excess fluid in the extremities, not just the lungs.
Choice C Reason
A decrease in serum potassium is a known side effect of furosemide due to its action on the kidneys, leading to increased excretion of potassium. While it's important to monitor for hypokalemia, a decrease in potassium does not directly indicate the therapeutic effect of reducing edema.
Choice D Reason
An increase in urine output from 30 mL per hour to 100 mL per hour is a direct indication that furosemide is achieving its therapeutic effect. Furosemide is a loop diuretic that increases urine production to help the body eliminate excess fluid, thereby reducing edema associated with conditions like hypertension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Sodium levels in the blood should normally be between 135 and 145 mEq/L. A level of 152 mEq/L is considered high and can be indicative of hypernatremia, which requires prompt medical attention to address potential dehydration, kidney issues, or other underlying conditions.
Choice B Reason:
Potassium levels should be within the range of 3.5 to 5.2 mEq/L for adults. A result of 3.8 mEq/L falls within the normal range, indicating no immediate concern regarding potassium levels.
Choice C Reason:
Calcium levels in the blood are typically between 8.6 and 10.2 mg/dL for adults. Therefore, a calcium level of 10.0 mg/dL is within the normal range and does not require urgent reporting to a physician.
Choice D Reason:
Creatinine levels in the blood should be between 0.6 to 1.3 mg/dL in adults, depending on factors such as age, gender, and muscle mass. A level of 1.2 mg/dL is at the higher end of the normal range but is not typically considered critical unless there are other signs of kidney dysfunction.
Correct Answer is A
Explanation
Choice A Reason:
Maintaining normal salt and fluid intake is crucial for patients on lithium. Lithium can affect sodium levels in the body, and consistent sodium intake helps to keep lithium levels stable. Patients should be advised to drink adequate fluids to prevent dehydration but avoid excessive fluid intake, which could alter lithium levels and potentially lead to toxicity¹²³⁴.
Choice B Reason:
Drinking twice the usual amount of fluids daily is not recommended for patients on lithium unless directed by a healthcare provider. Excessive fluid intake can lead to changes in lithium levels and increase the risk of lithium toxicity. Patients should aim to consume a sufficient amount of fluids to stay hydrated, especially in situations that may lead to dehydration, such as during hot weather or illness.
Choice C Reason:
Avoiding aged cheese, processed meats, and red wine is generally advised for patients taking monoamine oxidase inhibitors (MAOIs), not lithium. These foods can contain high levels of tyramine, which can interact with MAOIs. However, there are no specific dietary restrictions for lithium regarding these foods. Patients should follow a balanced diet and consult with their healthcare provider for personalized dietary advice.
Choice D Reason:
Doubling the lithium dose if diarrhea or vomiting occurs is incorrect and potentially dangerous. If a patient experiences diarrhea or vomiting, it can affect lithium absorption and increase the risk of toxicity. Instead, patients should contact their healthcare provider for guidance. Adjustments to the medication regimen should only be made under medical supervision.
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