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 Practitioners. A Nurse Practitioner is a registered nurse (RN) who also has a Masterâs degree and clinical experience. The NP may work independently or as a member of a health care team. He or she helps to educate patients, with a focus on health maintenance, counseling, and disease prevention.urse Practitioners. A Nurse Practitioner is a registered nurse (RN) who also has a Masterâs degree and clinical experience. The NP may work independently or as a member of a health care team. He or she helps to educate patients, with a focus on health maintenance, counseling, and disease prevention.