Which of the following medication orders requires clarification before the nurse can administer the order?

  • epinephrine (EpiPen) 0.25 mg IM STAT
  • heparin 30 units/kg/hr IV infusion for 24 hours
  • ampicillin (Omnipen) 500 mg PO bid
  • lorazepam (Ativan) 1.0 mg PO prn
Number 4 is correct.
An order with a trailing zero, or a zero that follows a decimal point, needs to be clarified by the physician. Here, the lorazepam (Ativan) 1.0 mg could be mistaken for 10 mg.