You respond to a farm for a possible snake bite. You find a 36-year-old male patient seated against a tree. Bystanders state the patient was bitten on the arm by a rattlesnake and is "really sick." As you approach, you notice that the patient appears in obvious distress, diaphoretic, and holding his right wrist. Which of the following is your highest priority?

A) Perform a primary assessment and identify any potential life threats.
B) Confirm the location and status of the snake.
C) Confirm the type of snake and contact medical control for specific instructions.
D) Immediately apply a constricting band to minimize the spread of the venom.

B