Fictional Dr. Gibson making House Call

Dr. Gibson receives a call and learns that the family doctor, Dr. Parsons, is unavailable. He examines a patient named Bobby and suspects a severe appendix issue, deciding that surgery may be necessary. Despite Dr. Parsons' absence, Dr. Gibson is confident in handling the situation himself.

What is the relationship between Doctor Gibson and Doctor Parsons?

How does Doctor Gibson feel about handling Bobby's case?