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.
It is important to note that the registered nurses are health care professionals whereas nurse practitioners undertake two years of nurse practitioner training and degree level qualification. RNs should have earned 2 to 4 year degree in Bachelor of Science in nursing or nursing science.hey have to necessarily work in the health care organizations and they are not entitled to prescribe medications. In Brief: - RN stands for Registered Nurses whereas NP stands for Nurse Practitioners. - RNs are health care professionals with 2 to 4 year degree in Bachelor of Science in nursing or nursing science.