Lewis's Medical Surgical Nursing in Canada, 5th Edition - Nursing Management: Diabetes Mellitus Related

Review Lewis's Medical Surgical Nursing in Canada, 5th Edition - Nursing Management: Diabetes Mellitus related questions and content

The nurse is admitting a patient with diabetic ketoacidosis (DKA) who has a serum potassium level of 2.9 mmol/L. Which of the following actions prescribed by the health care provider should the nurse take first?

  • A. Infuse regular insulin at 20 units/hour.
  • B. Place the patient on a cardiac monitor.
  • C. Administer IV potassium supplements.
  • D. Obtain urine glucose and ketone levels.
Correct Answer: B

Rationale: Hypokalemia can lead to potentially fatal dysrhythmias such as ventricular tachycardia and ventricular fibrillation, which would be detected with ECG monitoring. Since potassium must be infused over at least 1 hour, the nurse should initiate cardiac monitoring before infusion of potassium. Insulin should not be administered without cardiac monitoring, since insulin infusion will further decrease potassium levels. Urine glucose and ketone levels are not urgently needed to manage the patient's care.