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.
A Nurse Practitioner (NP) is a registered nurse (RN) with advanced training in diagnosing and treating illness. Nurse Practitioners prescribe medications, treat illness, and administer physical exams. NPs differ from physicians in that they focus on prevention, wellness, and education. NPs specialize in providing all encompassing individualized care. Most NPs specialize in particular areas of health care.