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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «R»:

  1. Reflux board Reflux board
    A reflux board is a device prescribed for use in children who have gastroesophageal reflux. The board tilts the child upward, to prevent or reduce gastroesophageal reflux while the child is lying in bed. Information A reflux board is used to lift the child's head and shoulders above his stomach. It...
  2. Reflux nephropathy Reflux nephropathy
    Reflux nephropathy is a condition in which the kidneys are damaged by the backward flow of urine into the kidney. Causes Urine flows from each kidney, through tubes called ureters, and into the bladder. When the bladder is full, it squeezes and sends the urine out through your urethra. None of the ...
  3. Refraction test Refraction test
    The refraction test is an eye exam that measures a person's prescription for eyeglasses or contact lenses. How the Test is Performed This test is performed by an ophthalmologist or optometrist, or "eye doctor." You sit in a chair that has a special device (called a phoroptor or refractor) attached ...
  4. Refractive corneal surgery Refractive corneal surgery
    Refractive corneal surgery corrects mild-to-moderate nearsightedness. If you are nearsighted, you have trouble seeing things that are far away. See also: LASIK eye surgery Description Your surgeon will place numbing drops in your eye so you do not feel pain during surgery. The exact type of surger...
  5. Refractive corneal surgery - discharge Refractive corneal surgery - discharge
    You had refractive corneal surgery to help improve your vision. This surgery corrects mild-to-moderate nearsightedness. You no longer need to wear glasses or contacts to see things that are far away. Your surgery probably took less than 30 minutes. You may have had the surgery in both eyes. What to...
  6. Refractive eye surgery - what to ask your doctor Refractive eye surgery - what to ask your doctor
    Refractive eye surgery helps improve nearsightedness. If you are nearsighted, you have trouble seeing things that are far away. Below are some questions you may want to ask your doctor or nurse. Questions Will this surgery help my type of vision problem? Will I still need glasses or contact lenses...
  7. Reifenstein syndrome Reifenstein syndrome
    Reifenstein syndrome is one of a group of diseases in which the body is unable to respond appropriately to the male sex hormones (androgens), which include testosterone. Causes As a male baby grows in the womb, male hormones (androgens) are made. This leads to the development of male sex organs. In...
  8. Relapsing fever Relapsing fever
    Relapsing fever is an infection transmitted by a louse or tick. It is characterized by repeated episodes of fever. Causes Relapsing fever is an infection caused by several species of bacteria in the Borrelia family. There are two major forms of relapsing fever: Tick-borne relapsing fever (TBRF) is...
  9. Remembering tips Remembering tips
    Forgetting the name of a person you just met, where you parked your car, where something is that you use every day, or a phone number you have dialed many times before can be unsettling and scary. As you age, it becomes harder and harder for your brain to create a new memory, even while you can reme...
  10. Renal Renal
    The term "renal" refers to the kidney. For example, renal failure means kidney failure. Related topics: Kidney disease Kidney disease - diet Kidney failure Kidney function tests Renal scan Kidney transplant ...
  11. Renal and urological disorders Renal and urological disorders
    Renal disorders refers to any disease of the kidneys. Urological disorders are diseases of the kidneys/urinary tract. This includes: Kidneys, ureters, urinary bladder, and urethra Male reproductive organs including the testes, epididymis, vas deferens, seminal vesicles, prostate, and penis Altern...
  12. Renal arteriography Renal arteriography
    Renal arteriography is a special x-ray of the blood vessels of the kidneys. Renal arteriography is also called renal angiography. See also: Renal venogram How the Test is Performed This test is done in the hospital. You will lie on an x-ray table. The health care provider will clean and shave the ...
  13. Renal biopsy Renal biopsy
    A renal biopsy is the removal of a small piece of kidney tissue for laboratory examination. How the Test is Performed There are many ways to perform a kidney biopsy. The most common uses ultrasound guidance. This means the doctor uses an ultrasound image to locate the proper area in your kidney. Th...
  14. Renal cell carcinoma Renal cell carcinoma
    Renal cell carcinoma is a type of kidney cancer in which the cancerous cells are found in the lining of very small tubes (tubules) in the kidney. Causes Renal cell carcinoma is the most common type of kidney cancer in adults. It occurs most often in men ages 50 - 70. The exact cause is unknown. Ris...
  15. Renal papillary necrosis Renal papillary necrosis
    Renal papillary necrosis is a disorder of the kidneys in which all or part renal papillae die. The renal papillae is the area where the openings of the collecting ducts enter the kidney. Causes Renal papillary necrosis is most commonly associated with analgesic nephropathy. However, a number of con...