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.
Nurse Practitioner (NP) vs. Physicianâs Assistant (PA) If you are considering an advanced degree in healthcare, you may want to. know the difference between the nurse practitioner and the physician assistant occupations. The truth is these two careers are similar in some ways as well as different in others.