Articles

Find answers to your health-related questions in our health encyclopedia.

  • Disease

    Cardiac arrest

  • Disease

    Central sleep apnea

    Central sleep apnea is a sleep disorder in which breathing stops over and over during sleep.

  • Poison

    Chlorpromazine overdose

    Chlorpromazine is a prescription medicine used to treat psychotic disorders. It may also be used to prevent nausea and vomiting, and for other reasons. This...

  • Disease

    Choanal atresia

    Choanal atresia is a narrowing or blockage of the nasal airway by tissue. It is a congenital condition, meaning it is present at birth.

  • Injury

    Choking - adult or child over 1 year

    Choking is when someone is having a very hard time breathing because food, a toy, or other object is blocking the throat or windpipe (airway). A choking...

  • Injury

    Choking - infant under 1 year

    Choking is when someone cannot breathe because food, a toy, or other object is blocking the throat or windpipe (airway). This article discusses choking in...

  • Injury

    Choking - unconscious adult or child over 1 year

    To remove an object causing choking, open the person's mouth with your thumb and index finger, placing your thumb over the tongue and your index finger under the chin. If the object is visible and loose, remove it. If the person is older than age 8, sweep two fingers from one side of the throat to the other to attempt to remove the object.

    Choking is when someone cannot breathe because food, a toy, or other object is blocking the throat or windpipe (airway). A choking person’s airway may be...

  • Disease

    Cholangiocarcinoma

    The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

    Cholangiocarcinoma (CCA) is a rare cancerous (malignant) growth in one of the ducts that carries bile from the liver to the small intestine.

  • Disease

    Cholangitis

    The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

    Cholangitis is an infection of the bile ducts, the tubes that carry bile from the liver to the gallbladder and intestines. Bile is a liquid made by the liver...

  • Disease

    Choledocholithiasis

    The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

    Choledocholithiasis is the presence of at least one gallstone in the common bile duct. The stone may be made up of bile pigments or calcium and cholesterol...