NCLEX RN Questions Medical Surgical Nursing Related

Review NCLEX RN Questions Medical Surgical Nursing related questions and content

The nurse is preparing to administer ten units of regular insulin and twenty units of NPH insulin. Which of the following actions is correct when mixing the insulins?

  • A. Aspirate insulin from the NPH vial first.
  • B. Roll the regular insulin vial prior to aspirating insulin.
  • C. Aspirate the regular insulin first before NPH.
  • D. Instill air into the regular insulin vial first.
Correct Answer: C

Rationale: Regular insulin is drawn up first to prevent contamination of the clear insulin with the cloudy NPH.