NCLEX RN Practice Questions Free Related

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Which of the following findings would necessitate discontinuing an IV potassium infusion in an adult with ketoacidosis?

  • A. Urine output 22 mL/hr for 2 hours
  • B. Serum potassium level of 3.7
  • C. Small T wave of ECG
  • D. Serum glucose level of 180
Correct Answer: A

Rationale: Adequate renal flow of 30 mL/hr is a necessity with potassium infusions because potassium is excreted renally. Because potassium level will decrease during correction of diabetic ketoacidosis, potassium will be infused even if plasma levels of potassium are normal. A small T wave is normal and desired on the electrocardiogram. A tall, peaked T-wave could indicate overinfusion of potassium and hyperkalemia. Glucose levels of <200 are desirable.