An emergency physician is a doctor who is an expert in handling conditions of an urgent and extremely dangerous nature. These specialists work in the emergency room (ER) departments of hospitals where they oversee cases involving cardiac distress, trauma, fractures, lacerations and other acute conditions.Emergency physicians are specially trained to make urgent life-saving decisions to treat patients during an emergency medical crisis. These doctors diagnose and stabilize patients before they are either well enough to be discharged, or transferred to the appropriate department for long-term care.

A family practitioner is a doctor who specializes in caring for people of all ages, at all stages of life. Rather than focusing on the treatment of one disease or patient population, family practitioners are often the doctors that people see for their everyday ailments, like cold and flu or respiratory infections, and health screenings. When necessary, family practitioners will provide referrals for conditions that require the expertise of another specialist.The doctors may also provide physicals, inoculations, prenatal care, treat chronic diseases, like diabetes and asthma, and provide advice on disease prevention.

An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.

A pediatric specialist is a physician who has extensive training in the diagnosis and treatment of specific conditions in children. These doctors are specialists in one particular therapy area, such as dermatology, pulmonology, surgery, or ophthalmology, in addition to being pediatricians. Pediatric specialists are who parents would take their children to when they are diagnosed with a condition requiring specialist treatment not provided by their pediatrician or primary care provider. While specialists in any area are qualified to treat children as well as adults, pediatric specialists have specific training in the way diseases affect children who are still growing and have different emotional needs than adults.

A pediatrician is a doctor who specializes in the regular care of children, as well as the diagnosis and treatment of illness in children. Young patients are often more complicated to treat because they are still growing and developing. While pediatricians may sub-specialize in specific therapy areas like oncology, surgery, ophthalmology, and anesthesiology, in general, pediatricians provide services like vaccinations, health exams, and treatment of common ailments and injuries. In addition, pediatricians are trained to handle the complex emotional and behavioral issues faced by children, especially during puberty. Pediatricians normally see their patients from birth until the age of 18, although some may agree to treat patients into their early 20s, if requested.

A medical toxicologist treats drug overdoses, whether intentional or unintentional, but they also study the specific effects various drugs and medications have on our health in specific doses. In addition to drug-related illnesses, a toxicologist can treat poisonous bug bites, snake bites and reactions to toxic plants or food. Toxicologists can also treat and diagnose exposure to any kind of toxic chemicals, gases (such as carbon monoxide) or pesticides as well as lead, mercury and arsenic poisoning. If you work in or live close to industrial facilities, you might worry about exposure to certain chemicals and gases that would adversely affect your body's normal function. Don't hesitate to consult with a toxicologist about your specific concerns.