A nurse is evaluating a client who has fluid volume overload and received furosemide 40 mg IV bolus 1 hr ago. Which of the following findings indicates that the medication was effective?

The client reports increased thirst.

The client's urine output is 250 mL/hr.

The client's heart rate is 100/min.

The client's weight is unchanged.

Answer and Explanation

The Correct Answer is B

Choice A reason:

The client reports increased thirst. This is not an indication that the medication was effective, because increased thirst can be a sign of dehydration or electrolyte imbalance caused by excessive diuresis. Furosemide can cause loss of water and sodium, potassium, calcium, magnesium, and chloride in the urine.

Choice B reason:

The client's urine output is 250 mL/hr. This is an indication that the medication was effective, because furosemide is a loop diuretic that inhibits the reabsorption of sodium and water in the ascending limb of the loop of Henle, resulting in increased urine output and decreased fluid volume. A normal urine output is about 30 to 60 mL/hr, so a urine output of 250 mL/hr indicates a significant diuretic effect.

Choice C reason:

The client's heart rate is 100/min. This is not an indication that the medication was effective, because a high heart rate can be a sign of hypovolemia, hypotension, or cardiac stress caused by furosemide. Furosemide can lower the blood pressure and reduce the preload and afterload on the heart, but it can also trigger compensatory mechanisms such as increased sympathetic activity and renin-angiotensin-aldosterone system activation, which can increase the heart rate.

Choice D reason:

The client's weight is unchanged. This is not an indication that the medication was effective, because weight loss is expected with furosemide therapy due to fluid removal. Furosemide can cause a rapid and significant reduction in fluid volume, which can be measured by daily weight changes. A weight loss of 1 kg corresponds to a fluid loss of about 1 L.

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Correct Answer is C

Explanation

Choice A reason: This is incorrect because 0.9% sodium chloride (normal saline) is an isotonic solution, not a hypotonic one. Isotonic solutions have the same concentration of solutes as blood plasma and do not cause fluid movement across the cell membrane.

Choice B reason:

This is incorrect because 0.9% sodium chloride (normal saline) is an isotonic solution, not a hypertonic one. Hypertonic solutions have a higher concentration of solutes than blood plasma and cause fluid to move out of the cells and into the vascular space.

Choice C reason:

This is correct because 0.9% sodium chloride (normal saline) is an isotonic solution that will expand the vascular space by adding fluid without changing the concentration of solutes. This is useful for patients with hyponatremia (low sodium level in the blood) who need to restore their fluid and electrolyte balance.

Choice D reason:

This is incorrect because 0.9% sodium chloride (normal saline) is an isotonic solution that will expand the vascular space by adding fluid without changing the concentration of solutes. It will not have no effect on fluid movement, as it will increase the intravascular volume.

A. Dextrose 5% in water (D5W) B. Lactated Ringer's (LR) C. Dextrose 5% in 0.45% sodium chloride (D5W/0.45% NaCl) D. Dextrose 5% in lactated Ringer's (D5LR)

Correct Answer is B

Explanation

Choice A reason:

Dextrose 5% in water (D5W) is a hypotonic solution that provides free water and calories, but no electrolytes. It is used to treat hypernatremia and cellular dehydration, but it can cause fluid shifts from the intravascular to the intracellular space, leading to cerebral edema and decreased blood pressure. This is not appropriate for a client who has dehydration due to vomiting and diarrhea, as they need to restore their intravascular volume and electrolyte balance.

Choice B reason:

Lactated Ringer's (LR) is an isotonic solution that contains sodium, chloride, potassium, calcium, and lactate. It is used to treat fluid loss from burns, trauma, surgery, or sepsis. It also helps to correct metabolic acidosis by providing bicarbonate precursors. This is the best choice for a client who has dehydration due to vomiting and diarrhea, as they need to replace their fluid and electrolyte losses and maintain their acid-base balance.

Choice C reason:

Dextrose 5% in 0.45% sodium chloride (D5W/0.45% NaCl) is a hypertonic solution that provides free water, calories, and sodium. It is used to treat hypovolemia and hyponatremia, but it can cause fluid shifts from the intracellular to the intravascular space, leading to cellular dehydration and increased blood pressure. This is not appropriate for a client who has dehydration due to vomiting and diarrhea, as they already have low blood pressure and cellular dehydration.

Choice D reason:

Dextrose 5% in lactated Ringer's (D5LR) is a hypertonic solution that provides free water, calories, sodium, chloride, potassium, calcium, and lactate. It is used to treat hypovolemia and metabolic acidosis, but it can cause fluid shifts from the intracellular to the intravascular space, leading to cellular dehydration and increased blood pressure. This is not appropriate for a client who has dehydration due to vomiting and diarrhea, as they already have low blood pressure and cellular dehydration.

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A nurse is evaluating a client who has fluid volume overload and received furosemide 40 mg IV bolus 1 hr ago. Which of the following findings indicates that the medication was effective?

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Naxlex Comprehensive Predictor Exams

The nurse is preparing to hang a bag of 0.9% sodium chloride (normal saline) for a patient who has hyponatremia. The nurse knows that this type of solution is:

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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