Rabies (deadly viral illness transmitted by animals) Description Rabies is a fatal viral disease passed to humans from infected animals. Patients contract the virus by being…
Radial head fracture (broken elbow bone) Description Elbow fractures most often occur when a person falls and lands on an outstretched hand. Sometimes the initia…
Radiation exposure (radiation sickness) Description Injury to the body from radiation. Radiation travels through the air and cannot be seen. Special machines ca…
Radiator fluid (ethylene glycol) poisoning Description Ethylene glycol is a solvent found in products ranging from antifreeze fluid and de-icing solutions to carpe…
Rattlesnake (pit viper) bite Description Pit vipers are the most prevalent family of poisonous snakes in the United States and include rattlesnakes, …
Ramsay Hunt syndrome (viral infection causing facial weakness) Description A disorder of the brain and nervous system that occurs when reactivated chicken-pox virus (varicella zoster)…
Rash Description A discoloration of the skin or a change in the surface or texture of the skin. Rashes typically result from …
Raynaud's disease (blood vessel constriction) Description A disease of the small arteries that carry oxygen-rich blood to the fingers, toes and nose. The arteries nar…
Rectal abscess (collection of pus in the rectum) Description The rectum is the last part of the large intestine attaching to the anus. An abscess is a collection of pus.…
Rectal ulcer Description An ulcer (an erosion) occurs in the rectum, producing rectal bleeding with straining, and with bowel movemen…
Reflex sympathetic dystrophy (complex pain syndrome) Description Also called Type 1 complex regional pain syndrome. A disorder that causes chronic pain, tenderness, sweating…
Rectovaginal fistula (internal rectum to vagina connection) Description An abnormal connection between the rectum and vagina. This condition can occur with the following conditions…
Rectocele Description A rectocele is an area of weakness in the wall of tissue that separates the vagina from the rectum. As the w…
Reiter syndrome (type of joint inflammation) Description Arthritis that may be accompanied with painful inflammation in one eye, and/or irritation in the urethra (th…
Renal artery stenosis (kidney artery narrowing) Description A narrowing in the diameter of the renal arteries. The decreased blood flow to the kidneys may lead to high …
Renal arteriovenous malformation (AVM, blood vessel abnormality of the kidney) Description An abnormal collection of arteries and veins within the kidney. The causes are either congenital or acquired…
Renal failure, acute (sudden kidney failure) Description A sudden failure of the kidneys to function. Kidneys are essential to maintain the fluid balance in the body…
Renal failure, chronic (ongoing kidney failure) Description Kidneys are essential to maintain the fluid balance in the body and control the body's chemistry. Kidney…
Renal infarct (kidney damage from an area of blocked blood flow) Description A blockage of blood flow to an area of the kidney causing death of tissue in a small section of a kidney. Us…
Renal trauma (kidney trauma) Description Trauma to the kidney can be as simple as bruising that causes only temporary symptoms of bloody urine. It ca…
