Muscle weakness, or myasthenia, is a decrease in strength in one or more muscles. It is a common symptom of muscular, neurological and metabolic disorders. Muscular diseases, such as muscular dystrophy and dermatomyositis (disorder characterized by muscle inflammation), are common causes of muscle weakness.
Rating Newest Oldest. Best Answer: A doctor has a degree from medical school (4 years, either an MD or a DO) and has gone through residency (anywhere from 3 to 10 additional years of training). They are licensed to practice medicine or surgery (or both) independently, write prescriptions, etc.
I love NPs and think they are necessary, but they are not doctors! They didn't go to medical school and they do not have carte blanche to practice medicine by themselves. Some Nurse Practitioners have a PhD in Nursing and in that case you can call them Dr. because they have a PhD. Also, that is incorrect, they do have the ability to practice on their own. Nurse practitioners can work without physicians. It is physicians assistants that are trained to work for/with a physician.