The nurse is preparing to administer the initial intravenous antibiotic to a client with an arterial ulcer on the right ankle. The client has a saline lock in the right forearm. Which order should the...

The nurse is preparing to administer the initial intravenous antibiotic to a client with an arterial ulcer on the right ankle. The client has a saline lock in the right forearm. Which order should the nurse prepare to administer the medication? Rank in order of performance

1. Inject 3 mL of normal saline into the saline lock.

2. Check to see if a culture and sensitivity test has been done.

3. Flush the intravenous tubing with the antibiotic.

4. Determine if the client has any known allergies.

5. Connect the antibiotic medication to the saline lock