A nurse is reviewing the medical record of a client who has a potassium level of 3.0 mEq/L. Which of the following findings should the nurse recognize as a potential causative factor?
Client has an NG tube to gastric suction.
Client has a history of alcohol abuse disorder.
Client reports drinking 3.5 to 4 L of water each day.
Client is currently prescribed spironolactone.
The Correct Answer is A
The correct answer is choice A. Client has an NG tube to gastric suction.
Choice A rationale:
Having an NG tube to gastric suction can lead to hypokalemia because the suctioning process removes potassium from the stomach contents, leading to a decrease in serum potassium levels.
Choice B rationale:
While a history of alcohol abuse disorder can lead to various electrolyte imbalances, it is not the most direct cause of hypokalemia compared to gastric suction.
Choice C rationale:
Drinking 3.5 to 4 liters of water each day can lead to dilutional hyponatremia but is less likely to cause hypokalemia directly.
Choice D rationale:
Spironolactone is a potassium-sparing diuretic, which means it helps retain potassium in the body. Therefore, it is not a causative factor for hypokalemia.
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Related Questions
Correct Answer is D
Explanation
Extracellular fluid deficit.
Choice A rationale:
Intracellular fluid deficit is a decrease in the fluid inside the cells, which may occur in conditions such as diabetic ketoacidosis. Severe burns are more likely to cause extracellular fluid shifts rather than intracellular fluid deficits.
Choice B rationale:
Interstitial fluid deficit involves a decrease in fluid in the interstitial spaces between cells. While burns can lead to fluid shifts, the primary concern is fluid loss from the vascular space (extracellular fluid).
Choice C rationale:
Intracellular fluid overload is not a typical health problem associated with severe burns. Burn injuries are more likely to cause fluid loss and shifts out of the intracellular space.
Choice D rationale:
Severe burns can result in significant loss of plasma and extracellular fluid, leading to hypovolemia and extracellular fluid deficit. This fluid loss can lead to hypovolemic shock and other complications if not adequately managed.
Correct Answer is D
Explanation
The correct answer is choice D: Reduction of T-wave amplitude.
Choice A rationale:
The amplitude of the QRS complex is not directly affected by changes in serum potassium levels. It represents ventricular depolarization, and its restoration would not be an expected outcome of polystyrene sulfonate treatment
Choice B rationale:
Shortening of the P-wave duration is not an expected change with polystyrene sulfonate treatment. The P-wave represents atrial depolarization, which is not significantly impacted by the administration of this medication
Choice C rationale:
Widening of the QRS complex is associated with high serum potassium levels. The goal of polystyrene sulfonate treatment is to lower potassium levels and, thus, return the QRS complex to its normal width
Choice D rationale:
Polystyrene sulfonate aims to reduce serum potassium levels. When effective, this should result in a reduction of T-wave amplitude, which is a common ECG change seen with hyperkalemia
In conclusion, choice D is the correct answer, as a reduction in T-wave amplitude would be the expected change on the client's ECG if polystyrene sulfonate effectively lowers their serum potassium level.
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