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Carcinoembryonic antigen (CEA) describes a set of highly-related glycoproteins involved in cell adhesion. CEA is normally produced in gastrointestinal tissue during fetal development, but the production stops before birth. Consequently, CEA is usually present at very low levels in the blood of healthy adults (about 2–4 ng/mL). [2]
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...
CEA: carcinoembryonic antigen carotid endarterectomy cost-effectiveness analysis: CEIOL: cataract extraction with intraocular lens placement CF: cystic fibrosis: CFA: complement-fixing antibody colonization factor antigen CFIDS: chronic fatigue immune dysfunction syndrome: CFR: case fatality rate: CFS: chronic fatigue syndrome: CFT: complement ...
Each assay may give different results of the clinical value of the p53 mutations as a prognostic factor. [6] Interlaboratory proficiency testing for tumor marker tests, and for clinical tests more generally, is routine in Europe and an emerging field [7] in the United States. New York state is prominent in advocating such research. [8]
A PCR test at a doctor’s office or laboratory has a better chance of picking up low concentrations of the virus, so a negative PCR test might be more reliable. “But again, there’s no such ...
A certificate of analysis can be associated with cannabis and cannabis-derived products, attesting to their laboratory analysis for cannabinoids, adulterants, heavy metals, pesticides, mold, etc. This gives consumers "an easy way to review test results from responsible companies selling cannabis and cannabis-infused products". [12]
An objective of the CLIA is to ensure the accuracy, reliability and timeliness of test results regardless of where the test was performed. Most Laboratory Developed Tests have been regulated under this program. [3] In 2014 the FDA started a public discussion about regulating some LDTs. [4]
M2-PK, as measured in feces, is a potential tumor marker for colorectal cancer.When measured in feces with a cutoff value of 4 U/ml, its sensitivity has been estimated to be 85% (with a 95% confidence interval of 65 to 96%) for colon cancer and 56% (confidence interval 41–74%) for rectal cancer. [1]
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