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.
Pediatric Nurse Practitioner. Nurse Practitioners are Registered Nurses who serve as primary and specialty health care providers under a physician. Much like a pediatrician, Pediatric Nurse Practitioners work with patients from infancy to young adulthood, diagnosing illness, conducting exams, and prescribing medication.