Clostridium difficile: A bacterium that is one of the most common causes of infection of the colon in the US. Patients taking antibiotics are at risk of becoming infected with C. difficile as antibiotics can disrupt the normal bacteria of the bowel, allowing C. difficile to become established in the colon. In some people, a toxin produced by C. difficile causes diarrhea, abdominal pain, severe inflammation of the colon (colitis), fever, an elevated white blood cell count, vomiting, and dehydration. In severely affected patients, the inner lining of the colon becomes severely inflamed (pseudomembranous colitis) with the potential to perforate.
- Clostridium perfringens
Clostridium perfringens: A bacterium that is the most common cause of gas gangrene, a lethal infection of soft tissue, especially muscle. C. perfringens bacteria are toxin- and gas-producing bacteria. Before the introduction of antibiotics, a significant percentage of battlefield injuries were complicated by gas gangrene. C. perfringens also causes food poisoning and a fulminant form […]
- Clot-dissolving medication
Clot-dissolving medication: An agent such as plasminogen-activator (t-PA) or streptokinase that is effective in dissolving clots and reopening arteries. For example, clot-dissolving medications may be used in the treatment of heart attacks, to reestablish blood flow to the heart muscle (myocardium). Also known as thrombolytic agents.
Clotbuster: An informal term for a drug that can dissolve a clot. See: Thrombolytic agent.
- Club drug
Club drug: A drug such as MDMA (Ecstasy), GHB, Rohypnol, ketamine, methamphetamine, and LSD that is used by young adults at all-night dance parties such as “raves” or “trances,” dance clubs, and bars. Use of club drugs can cause serious health problems and, in some cases, death. No club drug is benign. Chronic abuse of […]
Clubfoot: A common malformation of the foot that is evident at birth. The foot is turned in sharply so that the person seems to be walking on his or her ankle. Clubfoot can sometimes be corrected with a combination of surgery, bracing, and physical therapy. Also known as talipes equinovarus.