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Positive urine nitrite test used as a ClinicalGraph target concept for lab_medicine / lab_finding.

Solution titration in which the end point is read from the electrode-potential variations with the concentrations of potential determining ions. (Fro…

Serologic tests in which a positive reaction manifested by visible CHEMICAL PRECIPITATION occurs when a soluble ANTIGEN reacts with its precipitins, …

Tests to determine whether or not an individual is pregnant.

Methods of detecting pregnancy by examining the levels of human chorionic gonadotropin (HCG) in plasma or urine.

The initial culturing of cells derived directly from fresh TISSUES.

A technique that labels specific sequences in whole chromosomes by in situ DNA chain elongation or PCR (polymerase chain reaction).

Ligand-binding assays that measure protein-protein, protein-small molecule, or protein-nucleic acid interactions using a very large set of capturing …

Clotting time of PLASMA recalcified in the presence of excess TISSUE THROMBOPLASTIN. Factors measured are FIBRINOGEN; PROTHROMBIN; FACTOR V; FACTOR V…

Spectroscopy technique which measures changes in organic compounds by tracking the spectral energy of absorption of HYDROGEN atoms.

Use of a pulse of X-rays or fast electrons to generate free radicals for spectroscopic examination.

An in vitro allergen radioimmunoassay in which allergens are coupled to an immunosorbent. The coupled allergens bind the IgE in the sera of patients …

Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indir…

Sensitive assay using radiolabeled ANTIGENS to detect specific ANTIBODIES in SERUM. The antigens are allowed to react with the serum and then precipi…

Radioimmunoassay of proteins using antibody coupled to an immunosorbent.

Quantitative determination of receptor (binding) proteins in body fluids or tissue using radioactively labeled binding reagents (e.g., antibodies, in…

Methods for performing three-dimensional measurement and motion analysis using stereoscopic radiographs.

Diagnostic assays designed for use at the point-of-care (POC) that can be adapted for use in low-resource settings. These tests are low-cost, simple …

The time from the onset of a stimulus until a response is observed.

Methods used for detecting the amplified DNA products from the polymerase chain reaction as they accumulate instead of at the end of the reaction.

Red blood cell casts used as a ClinicalGraph target concept for lab_medicine / lab_finding.

Reduced estimated glomerular filtration rate used as a ClinicalGraph target concept for lab_medicine / lab_finding.

Low hemoglobin used as a ClinicalGraph target concept for investigation / lab_finding.

A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, …

The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of …

Measurement of the index of refraction (the ratio of the velocity of light or other radiation in the first of two media to its velocity in the second…

The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain repro…

An important aggregate factor in epidemiological studies of women's health. The concept usually includes the number and timing of pregnancies and the…

A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR pr…

The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilata…