| IA | ibotenic acid; immune adherence; immunoadsorbent; immunobiologic activity; impedance angle; indolami... |
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| IAHA | idiopathic autoimmune hemolytic anemia; immune adherence hemagglutination |
| LAI | latex particle agglutination inhibition; leukocyte adherence inhibition |
| LAIF | leukocyte adherence inhibition factor |
| PAF | paroxysmal atrial fibrillation; peroxisomal assembly factor; phosphodiesterase-activating factor; pl... |
| erythrocyte count | A count of the number of red blood cells per unit volume in a sample of venous blood. (12 Dec 1998) |
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| erythrocyte deformability | Ability of erythrocytes to change shape as they pass through narrow spaces, such as the microvasculature. (12 Dec 1998) |
| erythrocyte ghost | <cell biology> The membrane and cytoskeletal elements of the erythrocyte devoid of cytoplasmic contents, but preserving the original morphology. (18 Nov 1997) |
| erythrocyte inclusions | Pathologic inclusions occurring in erythrocytes. (12 Dec 1998) |
| erythrocyte indices | Quantification of size and cell haemoglobin content or concentration of the erythrocyte, usually derived from erythrocyte count, blood haemoglobin concentration, and haematocrit. Includes the mean cell volume (mcv), mean cell haemoglobin (mch), and mean cell haemoglobin concentration (mchc). Use also for cell diameter and thickness. (12 Dec 1998) |
| erythrocyte maturation factor | <biochemistry> Member of the water soluble B vitamin group, important in the proper function of the nervous system and important in proper carbohydrate, protein and fat metabolism. (27 Sep 1997) |
| erythrocyte membrane | The semipermeable outer portion of the red corpuscle. It is known as a 'ghost' after haemolysis. (12 Dec 1998) |
| erythrocyte membrane protein band 4.1 | See Elliptocytosis. (12 Dec 1998) |
| erythrocyte sedimentation rate | <investigation> A test that measures the rate at which red blood cells settle through a column of liquid. A non-specific index of inflammation. Acronym: ESR (11 Nov 1997) |
| erythrocyte transfusion | The transfer of erythrocytes from a donor to a recipient or reinfusion to the donor. (12 Dec 1998) |
| erythrocyte volume | Volume of circulating erythrocytes. It is usually measured by radioisotope dilution technique. (12 Dec 1998) |
| adhesion phenomenon | A phenomenon manifested by the adherence of antigen-antibody-complement complex to "indicator cells" (microorganisms, platelets, leukocytes, or erythrocytes), the reaction being sensitive and specific for the antigen and antibody in the complex. Synonym: erythrocyte adherence phenomenon, immune adherence phenomenon, red cell adherence phenomenon. (05 Mar 2000) |
| AFORMED phenomenon | As induced pulsus alternans progresses, a state in which alternating heart depolarisations fail to eject any blood, thus allowing longer diastolic filling; the subsequent beat is then able to produce a significant ejection; at high rates the cardiac minute volume and blood pressure may appear normal. Origin: Alternating, failure of response, mechanical, to electrical depolarisation (05 Mar 2000) |
| all-or-nothing phenomenon | <physiology> Refers to the phenomenon where the strength of a nerve impulse is not dependent on the strength of the stimulus. Instead, there is a threshold level of stimulus strength that must be reached before the nerve will fire an impulse (at full capacity). Below the threshold, the nerve will not fire at all. <cardiology> It also refers to the same phenomenon observed in the heart muscle, which will either contract fully or not at all. <psychology> In studies of behaviour, it refers to the same phenomenon where a behavioural stimulus will either produce a complete response or no response at all. Also called all-or-nothing principle, all-or-none law, all-or-none responsiveness, etc. (15 Nov 1997) |
| Anrep phenomenon | Homeometric autoregulation of the heart whereby cardiac performance improves as the afterload (aortic pressure) is increased. (05 Mar 2000) |