Contractions, Braxton Hicks: Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first pregnancy and, earlier and more intensely, in subsequent pregnancies.
These contractions tend to occur during physical activity. The uterus tightens for 30 to 60 seconds beginning at the top of the uterus; and the contraction gradually spreads downward before relaxing. Although said to be painless, Braxton Hicks contractions may be quite uncomfortable and sometimes difficult to distinguish from the contractions of true labor.
Not named for a Dr. Braxton and a Dr. Hicks but for John Braxton Hicks (1823-1897), a British gynecologist.
Contraindicate: To make a treatment or procedure inadvisable because of a particular condition or circumstance. For examples, certain medications are contraindicated during pregnancy because of the danger they pose to the fetus and the use of aspirin is clearly contraindicated in small children because of the danger of Reye syndrome.
Contraindication: A condition which makes a particular treatment or procedure potentially inadvisable. A contraindication may be absolute or relative. An absolute contraindication is a situation which makes a particular treatment or procedure absolutely inadvisable. In children, for example, aspirin is almost always contraindicated because of the danger that aspirin will cause Reye syndrome. A relative […]
Contralateral: Of or pertaining to the other side. The opposite of iposilateral (the same side). For example, a stroke involving the right side of the brain may cause contralateral paralysis of the left leg.
Contrast: Short for “contrast media.” Contrast media are X-ray dyes used to provide contrast, for example, between blood vessels and other tissue.
- Contrast nephropathy
Contrast nephropathy: A form of acute renal failure that starts soon after administration of contrast media (dye) for X-rays. The disorder usually runs a benign course and only rarely requires recourse to dialysis.