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 D
Explanation
Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) by the lungs, leading to an accumulation of CO2 and a decrease in pH.
Analysis:
pH 7.22: Indicates acidemia (pH below 7.35), suggesting acidosis.
PaCO2 68 mm Hg: Elevated PaCO2 indicates hypoventilation, which is characteristic of respiratory acidosis.
Base excess -2: Base excess is within normal limits and does not contribute significantly to the acid-base imbalance in this scenario.
PaO2 78 mm Hg: PaO2 is slightly low but not significantly contributing to the acid-base imbalance.
Saturation 80%: Oxygen saturation is low, indicating hypoxemia, which is commonly associated with respiratory acidosis due to hypoventilation.
Bicarbonate 26 mEq/L: Bicarbonate is within normal limits, suggesting compensation for the respiratory acidosis, which is a chronic condition.
Overall, the ABG values indicate respiratory acidosis due to inadequate ventilation, leading to CO2 retention and subsequent acidemia.
Correct Answer is D
Explanation
A) "It's a good idea to help make sure your husband can sleep comfortably.":
This encourages the partner to administer medication, which can lead to overmedication and potential harm.
B) "Why do you think your husband needs more medication when he is asleep?":
This might cause the partner to feel defensive. It also does not provide the necessary education about the correct use of the PCA pump.
C) "Next time you think he needs more medication, call me and I'll push the button.":
This is inappropriate as well. It does not address the core issue that only the patient should be pressing the button to ensure safe and appropriate use of the PCA pump.
D) "Your husband should decide when more medication is needed.":
This educates the partner about the proper use of the PCA pump, emphasizing that only the patient should press the button to ensure they are receiving medication only when they feel pain. This minimizes the risk of overmedication and adverse effects.
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