A nurse is reviewing the laboratory results of a client who has atrial fibrillation and a prescription for warfarin. After informing the provider that the INR is 2.5, the nurse should expect which of the following prescriptions?

A. This medication should be taken on an empty stomach:
Furosemide can be taken with or without food. Taking it with food can help reduce stomach upset, so there is no requirement to take it on an empty stomach.
B. Increase the amount of potassium in your diet:
This is the correct answer. Furosemide is a loop diuretic that can lead to potassium loss through increased urine output. Supplementing potassium through diet or potassium supplements may be necessary to prevent hypokalemia.
C. Take the medication before going to bed:
Furosemide is often recommended to be taken earlier in the day to avoid disrupting sleep with increased urination during the night. Taking it before going to bed is not a typical recommendation.
D. Weigh yourself on the same day each week:
Regular monitoring of weight is important in clients taking diuretics, but it is typically recommended to weigh daily at the same time each day, not weekly.

A. Urine specific gravity 1.020: While this value indicates concentrated urine and can be useful in assessing dehydration, it doesn’t specifically confirm effective treatment. High urine specific gravity suggests dehydration because the kidneys are conserving water, but it doesn’t directly confirm the effectiveness of treatment.
B. BUN 28 mg/dl (Blood Urea Nitrogen): Elevated BUN levels can be seen in dehydration, but it's not a direct marker of effective treatment. It indicates dehydration due to increased urea concentration in the blood but doesn’t confirm if the treatment has been effective or not.
C. Serum hematocrit 55%: In dehydration, the blood becomes more concentrated due to water loss, causing an increase in hematocrit levels. However, while this value might indicate dehydration initially, it may not specifically confirm the effectiveness of treatment once initiated.
D. Serum osmolarity 310 mOsm: Serum osmolarity measures the concentration of particles in the blood. In dehydration, the blood becomes more concentrated, leading to increased serum osmolarity. When treatment is effective, rehydration occurs, diluting the blood and bringing serum osmolarity back toward normal levels. Therefore, a decrease in serum osmolarity towards the normal range (280-300 mOsm) would indicate effective treatment of dehydration