quality control

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qual·i·ty con·trol

the control of laboratory analytic error by monitoring analytical performance with control sera and maintaining error within established limits around the mean control values, most commonly ±2 SD.

quality control

a method of repeated assay of known standard materials and monitoring reaction parameters to ensure precision and accuracy.

quality control

EBM
In clinical trials, the constellation of operational techniques and activities undertaken within the trial’s quality assurance system to verify that the quality requirements of the trial related activities have been fulfilled.

quality control

Lab medicine The constellation of mechanisms used to determine accuracy, reliability and consistency of data, assays or tests, often in the context of a clinical lab. See Accredited lab, Multirule procedure. Cf Quality assurance, Total quality management.

qual·i·ty con·trol

(QC) (kwahl'i-tē kŏn-trōl')
Control of laboratory analytic error by the monitoring of analytic performance with control sera and maintenance of error within established limits around the mean control values, most commonly ±2 standard deviations.

quality control,

n standards and procedures used to ensure the proper identification and quality level of a product.

qual·i·ty con·trol

(QC) (kwahl'i-tē kŏn-trōl')
Control of laboratory analytic error by the monitoring of analytic performance with control sera and maintenance of error within established limits around the mean control values, most commonly ±2 standard deviations.
See also: quality assurance

quality

purity of contents, care in presentation and finish of a product.

quality assurance
planned and systematic action necessary to provide adequate confidence that a product or service will satisfy given requirements for quality. Quality is built into the product or service, rather than 'inspected in'.
quality control
the use of operational techniques, particularly end-product testing or inspection to ensure that a product or service satisfies its stated or implied role.
quality of life
generally regarded as the balance between pleasant and unpleasant factors and experiences as they apply to an animal's physical and mental state. A term used in discussions of euthanasia or intensive treatment.
protein quality
relates to the content and balance of amino acids in the protein. A good quality protein contains the amino acids in the correct proportions required by the specific animal species.
radiographic quality
depends on the correct positioning of the subject part, good contrast, clear image due to good detail and absence of artifacts.
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