A patient with chronic renal failure has an occluded arteriovenous fistula, and routine hemodialysis is delayed. However, the patient's serum potassium level is 6.0 mEq/L. What should the nurse expect to be prescribed for this patient? Select all that apply.
Sodium bicarbonate.
Dextrose 10%.
Sodium polystyrene sulfonate (Kayexalate).
Insulin.
Correct Answer : A,C,D
A, C, and D.
Choice A rationale:
The administration of sodium bicarbonate helps to correct acidosis, which can occur in chronic renal failure due to the accumulation of metabolic waste products in the absence of effective kidney function.
Choice C rationale:
Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia, which is common in chronic renal failure due to impaired potassium excretion by the kidneys.
Choice D rationale:
Insulin can be prescribed to treat hyperkalemia by promoting the uptake of potassium into cells, thereby reducing the serum potassium level. Choice B and E rationale: Dextrose 10% and furosemide (Lasix) are not appropriate treatments for hyperkalemia. Dextrose 10% is a sugar solution and does not impact potassium levels, while furosemide is a loop diuretic that primarily affects sodium and water excretion, not potassium.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Cerebral bleeding. Choice A rationale:
Stress fractures are not directly related to hypernatremia. Hypernatremia is an electrolyte imbalance, and its main effects are related to cellular dehydration and neurological symptoms rather than bone fractures.
Choice B rationale:
This is the correct answer because hypernatremia can lead to severe dehydration and cause neurological complications, including cerebral bleeding. The brain cells can shrink due to water loss, causing blood vessels to rupture, leading to bleeding in the brain.
Choice C rationale:
Atrial dysrhythmias are not directly associated with hypernatremia. Hypernatremia primarily affects the central nervous system and can lead to neurological symptoms rather than cardiac dysrhythmias.
Choice D rationale:
Pulmonary edema is not a likely consequence of hypernatremia. Pulmonary edema is associated with fluid volume excess, not fluid volume deficit, which is characteristic of hypernatremia.
Correct Answer is A
Explanation
Choice A rationale:
Fluid volume overload is an excess of fluid in the intravascular and/or interstitial spaces. One of the hallmark signs of fluid volume overload is distended neck veins, which indicates increased venous pressure due to the accumulation of fluid. The neck veins become more visible and prominent, especially when the patient is in a semi-Fowler's position.
Choice B rationale:
Poor skin turgor is a sign of dehydration, not fluid volume overload. It is characterized by the skin's inability to return to its normal position after being gently pinched. In fluid volume overload, the skin may become edematous and puffy, but it does not exhibit poor turgor.
Choice C rationale:
Concentrated hemoglobin and hematocrit levels are seen in conditions of dehydration or hemoconcentration, not in fluid volume overload. In fluid volume overload, there is excess fluid, which may lead to dilutional effects, resulting in decreased concentration of blood components.
Choice D rationale:
Decreased urine output is associated with fluid volume deficit (dehydration) rather than fluid volume overload. In fluid volume overload, there is often an increase in urine output as the body tries to eliminate the excess fluid.
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