The nurse takes a telephone order from a primary care provider for 40 mEq potassium chloride in 100 ...

The nurse takes a telephone order from a primary care provider for 40 mEq potassium chloride in 100 mL of sterile water for injection to be infused over 4 hours. Which action must the nurse take to ensure the accuracy of the order?
 
  1) Repeat the order to the prescriber even if she believes she understood the order correctly.
  2) Immediately notify the pharmacy of the order and verify it with a pharmacist.
  3) Ask the unit secretary to listen to the prescriber on the phone to verify the order.
  4) Transcribe the order onto note paper and verify the dosage in a drug handbook.