Nodes

Methods used to measure the relative activity of a specific enzyme or its concentration in solution. Typically an enzyme substrate is added to a buff…

An immunoenzyme test for the presence of drugs and other substances in urine and blood. The test uses enzyme linked antibodies that react only with t…

The extent to which an enzyme retains its structural conformation or its activity when subjected to storage, isolation, and purification or various o…

An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound t…

A method of detection of the number of cells in a sample secreting a specific molecule. With this method, a population of cells are plated over top o…

Recording the locations and measurements of electrical activity in the EPICARDIUM by placing electrodes on the surface of the heart to analyze the pa…

upper central abdominal region

Epigastric region.

A genetic engineering technique that involves manipulating the EPIGENOME at the target region with minimal or no modification of the genomic DNA.

Epileptogenic structural lesion on brain MRI used as a ClinicalGraph target concept for investigation / imaging_finding.

Any method of measuring the amount of work done by an organism, usually during PHYSICAL EXERTION. Ergometry also includes measures of power. Some ins…

widening of metadiaphysis esp. in distal femur seen in Gaucher's, thalassemia and Pyle's disease

The formation of clumps of RED BLOOD CELLS under low or non-flow conditions, resulting from the attraction forces between the red blood cells. The ce…

The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD.

ERYTHROCYTE size and HEMOGLOBIN content or concentration, usually derived from ERYTHROCYTE COUNT; BLOOD hemoglobin concentration; and HEMATOCRIT. The…

Analysis of the HYDROGEN ION CONCENTRATION in the lumen of the ESOPHAGUS. It is used to record the pattern, frequency, and duration of GASTROESOPHAGE…

Esophagitis on endoscopy used as a ClinicalGraph target concept for investigation / imaging_finding.

Endoscopic examination, therapy or surgery of the esophagus.

esophageal course (contrast outline in this illustration)

Esophageal air/soft tissue shadow sometimes visible behind heart/mediastinum on CXR.

Estimated fluid sequestration is a dynamic severity parameter used in acute pancreatitis criteria.

Estimated glomerular filtration rate measurement used as a ClinicalGraph target concept for investigation / investigation.

Methods for recognizing the state of ESTRUS.

Occurrence or induction of ESTRUS in all of the females in a group at the same time, applies only to non-primate mammals with ESTROUS CYCLE.

Created as a target node for a staged ClinicalGraph edge. Review and enrich this node later if needed.

Exercise stress testing used as a ClinicalGraph target concept for investigation / investigation.

Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, b…

Exercise-induced ST-segment depression used as a ClinicalGraph target concept for investigation / investigation_finding.