GI series


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Related to GI series: Lower GI series

series

 [se´rēz]
a group or succession of events, objects, or substances arranged in regular order or forming a kind of chain; in electricity, parts of a circuit connected successively end to end to form a single path for the current. adj., adj se´rial.
erythrocyte series (erythrocytic series) the succession of morphologically distinguishable cells that that are stages in erythrocyte development: in order of maturity, the proerythroblast, basophilic erythroblast, polychromatophilic erythroblast, orthochromatic erythroblast, reticulocyte, and erythrocyte.
gastrointestinal series (GI series) an examination of the upper gastrointestinal tract using barium as the contrast medium for a series of x-ray films; see also barium test. Called also barium meal.
granulocyte series (granulocytic series) the succession of morphologically distinguishable cells that are stages in granulocyte development: in order of maturity, the myeloblast, promyelocyte, myelocyte, metamyelocyte, the band or stab cell, which is the least mature form normally found in the peripheral blood, and the mature segmented (polymorphonuclear) granulocyte. Commitment to one of the granulocyte lines occurs in stem cells before the myeloblast stage is reached; thus there are distinct neutrophil, eosinophil, and basophil series; however, the morphologic stages are the same.
lymphocyte series (lymphocytic series) the succession of developing cells that ultimately culminates in mature lymphocytes. The morphologically distinguishable forms are lymphoblast, prolymphocyte, and lymphocyte.
monocyte series (monocytic series) the succession of developing cells that ultimately culminates in the monocyte. The morphologically distinguishable forms are monoblast, promonoblast, and monocyte.
plasmacyte series (plasmacytic series) a series of morphologically distinguishable cells that are stages in plasma cell development: in order of maturity, the plasmablast (an activated B cell usually referred to as a large lymphocyte or lymphoblast), proplasmacyte, and plasmacyte.
thrombocyte series (thrombocytic series) the succession of developing cells that ultimately culminates in platelets (thrombocytes). The morphologically distinct cell types are megakaryoblast, promegakaryocyte, and megakaryocyte, which fragments to form platelets.

GI series

 See Upper GI series.
References in periodicals archive ?
Irritable bowel syndrome and GERD (Gastroesophageal Reflux Disease), common concerns, are fully discussed, along with procedures and tests such as the Barium Enema, Colonoscopy, Endoscopy, Sigmoidoscopy, Lactose Tolerance Test and Upper GI Series.
IN ABOUT 5% OF CASES of gastrointestinal (GI) hemorrhage, the source of bleeding is not identifiable, (1) and patients are often subjected to extensive and repetitive testing, including upper endoscopy, colonoscopy, and upper GI series (with contrast medium).
Doctors may perform an upper GI series to diagnose ulcers.
An upper GI series may be performed during the early phase of testing.