A nurse is providing instruction to a new nurse about caring for clients who are receiving diuretic therapy to treat heart failure. The nurse should explain that which of the following medications puts clients at risk for both hyperkalemia and hyponatremia?
Hydrochlorothiazide
Spironolactone
Furosemide
Metolazone
The Correct Answer is B
A) Hydrochlorothiazide: Hydrochlorothiazide is a thiazide diuretic that promotes sodium and water excretion, leading to decreased blood volume and decreased potassium excretion. While it can cause hypokalemia due to increased potassium excretion, it does not typically lead to hyperkalemia.
B) Spironolactone: Spironolactone is a potassium-sparing diuretic that inhibits aldosterone, leading to decreased sodium reabsorption and increased potassium retention. This mechanism of action can predispose clients to hyperkalemia due to potassium retention. Additionally, spironolactone can cause hyponatremia by promoting the excretion of sodium and water. Therefore, clients receiving spironolactone are at risk for both hyperkalemia and hyponatremia.
C) Furosemide: Furosemide is a loop diuretic that inhibits sodium and chloride reabsorption in the loop of Henle, promoting sodium, chloride, potassium, and water excretion. While it can cause hypokalemia due to increased potassium excretion, it does not typically lead to hyperkalemia.
D) Metolazone: Metolazone is a thiazide-like diuretic that acts similarly to hydrochlorothiazide by promoting sodium and water excretion. Like hydrochlorothiazide, it can cause hypokalemia due to increased potassium excretion but does not typically lead to hyperkalemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Lactated Ringer's:
Lactated Ringer's solution is an isotonic crystalloid solution that contains electrolytes similar to those found in plasma. It is commonly used for fluid resuscitation and maintenance therapy but is not typically used for treating hypernatremia, as it contains sodium chloride and could exacerbate the client's condition.
B) Dextrose 10% in water:
Dextrose 10% in water is a hypertonic solution primarily used to provide calories and treat hypoglycemia. It does not address the underlying electrolyte imbalance in hypernatremia.
C) 0.45% sodium chloride:
0.45% sodium chloride, also known as half-normal saline, is a hypotonic solution used to treat hypernatremia by diluting the excess sodium in the bloodstream. It provides free water to rehydrate cells without adding excessive sodium. This solution is appropriate for clients with hypernatremia who require IV fluid therapy.
D) Dextrose 5% in 0.9% sodium chloride:
Dextrose 5% in 0.9% sodium chloride, also known as D5NS, is a hypertonic solution containing both dextrose and sodium chloride. While it provides water and calories, the sodium content may exacerbate hypernatremia rather than correct it. Therefore, it is not the most appropriate choice for a client with hypernatremia.
Correct Answer is B
Explanation
A. Chronic drainage of fluid through the incision site:
While chronic drainage of fluid through the incision site can be a sign of wound complications, such as infection or poor wound healing, it is not as specific an indicator of impending wound dehiscence as the patient's report of "something giving way."
B. Report by patient that something has given way:
A patient reporting that something has given way is a significant indicator of potential wound dehiscence. Wound dehiscence refers to the partial or complete separation of the layers of a surgical wound, which can occur due to various factors such as poor wound healing, infection, or increased intra-abdominal pressure. Patients may describe a sensation of "something giving way" or "popping" if the wound starts to separate.
C. Drainage that is odorous and purulent:
Odorous and purulent drainage from an incision site may indicate an infection, which can contribute to wound dehiscence. However, this finding alone may not necessarily indicate immediate wound dehiscence.
D. Protrusion of visceral organs through a wound opening:
Protrusion of visceral organs through a wound opening is a severe complication known as evisceration, which is the most advanced stage of wound dehiscence. While this finding is indicative of a significant wound complication, it typically occurs after the initial separation of wound layers. Therefore, it is not an early sign that would alert the nurse to potential wound dehiscence
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