Etiology is another word for ________

An 83-year-old female has fallen down the basement stairs. Once at her side, she tells you that her left hip hurts and rates it 10/10. Since the patient is downstairs, you recognize the need for assistance in extricating from the residence. As you start the primary assessment, you note a dog at the top of the stairs growling. At this time, what is your primary concern?

A) Airway B) Pain C) Need for additional help D) Dog

_________ is a serum containing antibodies that counteracts venom.

Fill in the blank(s) with the appropriate word(s).