Cross-matching Health Dictionary

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Cross-matching: From 1 Different Sources

A procedure to determine compatibility between the blood of a person requiring a blood transfusion and that of a donor.

Red blood cells from one person are combined with serum from the other.

Clumping of red blood cells indicates the presence of antibodies, showing the blood is not compatible.

Health Source: BMA Medical Dictionary
Author: The British Medical Association

Cross-sectional Study

A study that measures the prevalence of health outcomes or determinants of health, or both and other variables of interest in a population at a point in time or over a short period.... cross-sectional study

Cross-utility Analysis

A form of cost-effectiveness analysis of alternative interventions in which costs are measured in monetary units and outcomes are measured in terms of their utility, usually to the individual, e.g. using QALYs.... cross-utility analysis

Red Cross

See FIRST AID.... red cross

Cross-eye

A type of strabismus (squint) in which one or both eyes turns inwards relative to the other.... cross-eye

Cross-dressing

n. see transvestism.... cross-dressing

Cross-over Trial

see intervention study.... cross-over trial

Cross-sectional Imaging

any technique that produces an image in the form of a section through the body with the structures cut across. The main techniques are *ultrasonography, *computerized tomography, *magnetic resonance imaging, and some *nuclear medicine techniques (see positron emission tomography; SPECT scanning). If a series of thin-section images is stacked they can be ‘cut’ through to show other planes or allow reconstruction of three-dimensional images.... cross-sectional imaging

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