Dr. Margreete Gaye Johnston M.D., MPH

Recommended Articles

• When a Child with Autism Refuses Treatment

  You have a child you love very much. You want to help them so that they can develop into as healthy and happy a person as they can be. But they refuse to cooperate with their unique autism treatment. What can you do?Children with autism can refuse treatment for a variety of reasons. Some reasons...

• An Appendectomy for Appendicitis

  Appendicitis is the inflammation of the appendix, a tube-like extension attached to the large intestine. The appendix has no known function, but one thing for certain is that one can live without it with no apparent consequences.Appendicitis is a life and death kind of matter and should be treated...

• What Is Cyanosis and Why Does It Occur?

  IntroductionCyanosis is the medical term for a bluish discoloration of the skin, nails, toes, and mucous membranes. It is generally caused by low levels of oxygen in the blood. Normally, blood appears bright red when it is fully oxygenated. However, when blood does not have enough oxygen, it turns...

• What Are Fraternal Twins?

  Fraternal twins definitionFraternal twins are commonly known as "non-identical twins" and can be simply defined as siblings who share the same womb but with different amniotic sacs and placentas. Biologically, they are said to be "dizygotic" meaning two different sperm cells fertilized two...

• Tdap Vaccine for Whooping Cough

  The Tdap vaccine protects the body from three diseases: tetanus, diphtheria, and whooping cough....

• What Are Vaccines?

  What is a vaccine?Vaccines are products that enable a person to develop immunity against certain diseases. A vaccine can be given through needle injections, by aerosol, or by mouth. The polio vaccine is given in the form of mouth drops that contain live but weakened organisms. The vaccine gets into...