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Medical screening 

Medical screening
Chapter:
Medical screening
Author(s):

Nicholas Wald

and Malcolm Law

DOI:
10.1093/med/9780199204854.003.030302_update_002

Update:

Antenatal screening – discussion of increasing use of DNA analysis of maternal blood for routine screening for Down’s syndrome and other chromosomal disorders.

Cancer screening – (1) manual breast self-examination by women shown not to reduce breast cancer mortality; (2) once-only flexible sigmoidoscopy screening for colorectal cancer; (3) low dose spiral computed tomographic screening for lung cancer.

Updated on 30 Jul 2015. The previous version of this content can be found here.
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date: 12 December 2017

Medical screening is the systematic application of a test or inquiry to identify individuals at sufficient risk of a specific disorder to benefit from further investigation or direct preventive action (these individuals not having sought medical attention on account of symptoms of that disorder). Key to this definition is that the early detection of disease is not an end in itself; bringing forward a diagnosis without altering the prognosis is useless and may be harmful....

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