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.

Answer and Explanation

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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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.

A. Dysrhythmias. B. Kussmaul respirations. C. Weakness. D. Cold, clammy skin.

Correct Answer is ["B","C","E"]

Explanation

Choice A rationale:

Dysrhythmias are not a direct consequence of diabetic ketoacidosis (DKA) or the acid-base imbalance indicated by the patient's pH of 7.2 and bicarbonate level of 20 mEq/L. DKA primarily affects the respiratory system, leading to Kussmaul respirations, not dysrhythmias.

Choice B rationale:

Kussmaul respirations are an expected finding in a patient with diabetic ketoacidosis (DKA) and metabolic acidosis. These deep, rapid breaths are the body's attempt to compensate for the acidosis by eliminating excess CO2.

Choice C rationale:

Weakness is a common symptom of DKA. The hyperglycemia and acidosis result in intracellular dehydration and impaired cellular function, leading to weakness and fatigue.

Choice D rationale:

Cold, clammy skin is not typically associated with DKA. Instead, patients with DKA may have warm, dry skin due to dehydration and impaired thermoregulation.

Choice E rationale:

Tachycardia is an expected finding in a patient with DKA. The metabolic acidosis and dehydration lead to an increase in heart rate as the body attempts to maintain perfusion.

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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.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has a serum potassium level of 5.5 mEq/L. The provider prescribes polystyrene sulfonate. If this medication is effective, the nurse should expect which of the following changes on the client's ECG?

Correct Answer is D

Explanation

A patient newly diagnosed with diabetes mellitus is admitted to the emergency department with nausea, vomiting, and abdominal pain. ABG results reveal a pH of 7.2 and a bicarbonate level of 20 mEq/L. What other assessment findings should the nurse anticipate in this patient? Select all that apply.

Correct Answer is ["B","C","E"]

Explanation

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