The RN Observes All of the Following Actions Being Taken

The RN observes all of the following actions being taken by a staff nurse who has floated to the unit. Which action requires that the RN intervene?

A) The float nurse uses clean latex gloves when applying antibacterial cream to a burn wound.
B) The float nurse obtains burn cultures when the patient has a temperature of 95.2° F ( 35.1° C ) .
C) The float nurse administers PRN fentanyl ( Sublimaze ) IV to a patient 5 minutes before a dressing change.
D) The float nurse calls the health care provider for an insulin order when a nondiabetic patient has an elevated serum glucose.