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

  • Surgery

    D and C

    D and C (dilatation and curettage) is a procedure in which the vaginal canal is held open with a speculum and the cervix is dilated with a metal rod. A curette is then passed through the cervical canal into the uterine cavity where endometrial tissue is scraped away and collected for examination.

    D and C is a procedure to scrape and collect the tissue (endometrium) from inside the uterus. Dilation (“D”) is a widening of the cervix to allow...

  • Test

    D-dimer test

    D-dimer tests are used to check for blood clotting problems. Blood clots can cause health problems, such as: Deep vein thrombosis (DVT) Pulmonary embolism...

  • Test

    D-xylose absorption

    The urinary system is made up of the kidneys, ureters, urethra and bladder.

    D-xylose absorption is a laboratory test to determine how well the intestines absorb a simple sugar (D-xylose). The test helps determine if nutrients are...

  • Special Topic

    Dacron graft

    A dacron graft is sutured to the aorta to repair an ascending aortic aneurysm.

    A Dacron graft is a man-made (synthetic) material that is used to replace normal body tissues. It is usually made in a tube form to replace or repair blood...

  • Disease


    Dacryoadenitis is an inflammation of the tear-producing gland (lacrimal gland).

  • Self-Care Instructions

    Daily bowel care program

    Incontinence – care; Dysfunctional bowel – care; Neurogenic bowel – care

  • Special Topic

    Day care health risks

    Children in day care centers are more likely to catch an infection than kids who do not attend day care. Children who go to day care are often around other...

  • Self-Care Instructions

    Day to day with COPD

    Your doctor gave you the news: you have COPD. There is no cure, but there are things you can do every day to keep COPD from getting worse, to protect your...

  • Self-Care Instructions

    De Quervain’s tendinitis

    A tendon is thick bendable tissue that connects muscle to bone. Two tendons run from the back of your thumb down the side of your wrist. De Quervain’s...

  • Special Topic

    Death among children and adolescents

    Clear, specific information about sexual behavior and its consequences is frequently not provided to adolescents by their families, schools and communities. The "sex education" that many receive comes from misinformed or uninformed peers.

    Accidents are, by far, the leading cause of death among children and adolescents. THE TOP THREE CAUSES OF DEATH BY AGE GROUP 0-1 years: Developmental and...