The first step begins with: A. the mouth.
Well, (not trying to plagiarize) the client is expressing their fear of surgery, and this is from the body's reaction to danger (emotionally and physically).
Multifactorial disorder
Multifactorial disorders are
disorders that involve variations in multiple genes joined with environmental
causes. Diseases such as heart disease, type 2 diabetes, and obesity are multifactorial
disorder as they do not have single genetic cause but are caused by a
combination of environmental factors and life style with mutations in multiple
genes.