Dr. Kimberly Hartzell M.D.

Recommended Articles

• Asthmatic Bronchitis: Symptoms, Causes, and Treatments

  IntroductionEvery time you inhale, air enters your nose and mouth, and then flows down the throat through the air passageways called as bronchial tubes. For the air to reach the lungs, these passageways need to be open. To transport the oxygen to the tissues of the body, oxygen is passed into the...

• What Is Bibasilar Atelectasis?

  IntroductionOur lungs are one of the hardest working organs in the body. Each minute, our lungs expand and contract up to 20 times. This is done to exchange carbon dioxide with oxygen. An obstruction in this process is called as bibasilar atelectasis, which is a life-threatening condition. It...

• What is Lung Cancer? Get the Facts

  The Nature of Cancerous CellsEvery cell in the human body is programmed to carry out a specific role. For example, a red blood cell carries oxygen to tissues, a white blood cell wards off infection, and an intestinal cell absorbs nutrients in the digestive tract. All these cells are programmed to...

• Croup: Making a Diagnosis

  Croup is a common viral infection among children. It causes inflammation and swelling of the trachea (windpipe) and larynx (throat). As a result, a barking cough and noisy breathing often occur. Children under five years old are the most susceptible to the condition.Children who contract croup...

• Stridor in Children: Croup Is Not the Only Cause

  Stridor is a high-pitched sound that is caused by a disrupted airflow. It is a sign of an upper airway obstruction that affects children more than adults. A disrupted airflow is caused by a blockage in the voice box (larynx) or windpipe (trachea). Stridor is most noticeable during inhalation, but...

• Children Who Have Low Levels of Vitamin D Are at Risk for Infection

  A new study has shown that infants who are 3-months-old and have vitamin D levels lower than 25 nanomoles per liter (nmol/L) are two times more likely to have respiratory infections, when compared to children who have levels above 75 nmol/L. In this study, published in the journal Pediatrics,...