| HA | H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health alli... |
|---|---|
| HAI | hemagglutination inhibition; hepatic arterial infusion |
| HATTS | hemagglutination treponemal test for syphilis |
| HI | half-scan with interpolation; head injury; health insurance; hearing impaired; heart infusion; hemag... |
| H-I | hemagglutination-inhibition |
| 17-ketogenic steroid assay test | A colourimetric test, based on the Zimmermann reaction, which indicates metabolites or adrenal and testicular steroids excreted as 17-ketones in the urine; increased values are most striking in adrenocortical tumours, decreased values in Addison's disease or in panhypopituitarism. Synonym: ketogenic corticoids test. (05 Mar 2000) |
|---|---|
| focus-forming assay | <investigation> A lab technique used to find out if a particular piece of DNA contains oncogenes (genes which are associated with cancer). This is done by putting the DNA into animal cells which normally show contact inhibition, or which stop growing when they come into physical contact with other cells or reach a certain density in the culture. If the cells lose contact inhibition and form areas of densely-packed cells (called foci) after receiving the DNA, it means that the DNA did contain oncogenes. (05 Jan 1997) |
| leukocyte bactericidal assay test | A test of leukocytes to determine their ability to kill a culture of live bacteria. (05 Mar 2000) |
| LH assay | A blood test which measures the amount of luteinising hormone (LH). LH is a protein hormone that is secreted by the anterior pituitary gland. In women, a surge in LH at midcycle causes ovulation. For the next 7-10 days LH maintains the corpus luteum which synthesises progesterone. The corpus luteum disintegrates after about 10 days if fertilization does not occur. In men, LH stimulates production of testosterone by the Leydig cells in the testes. This test may be used to evaluate anovulatory bleeding, infertility, ovarian cysts and multiple endocrine neoplasia (MEN) I. Normal values in males: 7 to 24 U/L. Normal values in females: greater than 6-30 U/L. Greater than normal values can indicate: anorchia, hypogonadism, Klinefelter syndrome, menopause, ovarian failure, polycystic ovary disease, precocious puberty and Turner's syndrome. Lower than normal values can indicate hypopituitarism. (27 Sep 1997) |
| Lowry-Folin assay | A method for determining protein concentrations using the Folin-Ciocalteu reagent. Synonym: Lowry-Folin assay. (05 Mar 2000) |
| Lowry protein assay | A method for determining protein concentrations using the Folin-Ciocalteu reagent. Synonym: Lowry-Folin assay. (05 Mar 2000) |
| rabies immune globulin | Globulin fraction of pooled plasma of high anti-rabies virus titre from immunised persons. Synonym: rabies immunoglobulin. (05 Mar 2000) |
| measles immune globulin | A sterile solution of globulin's derived from the blood plasma of normal adult human donors; it is prepared from immune serum globulin that complies with the measles antibody reference standard; a passive immunizing agent. Synonym: measles immunoglobulin. (05 Mar 2000) |
| cellular immune theory | A concept, put forth by Elie Metchnikoff, that cells, not antibodies, were responsible for the immune response of an organism. (05 Mar 2000) |
| rho(d) immune globulin | Immunizing agent containing IgG anti-rho(d) used for preventing rh immunization in rh-negative individuals exposed to rh-positive red blood cells. (12 Dec 1998) |
| chickenpox immune globulin | Globulin fraction of serum from persons recently recovered from herpes zoster infection; used to prevent infection of high-risk children. Synonym: chickenpox immunoglobulin. (05 Mar 2000) |
| pertussis immune globulin | A sterile solution of globulin's derived from the plasma of adult human donors who have been immunised with pertussis vaccine; used both prophylactically and therapeutically. Synonym: pertussis immunoglobulin. (05 Mar 2000) |
| poliomyelitis immune globulin | A sterile solution of globulin's that contains those antibodies normally present in adult human blood; it is a passive immunologic agent that attenuates or prevents poliomyelitis, measles, and infectious hepatitis, and confers temporary but significant protection against paralytic polio. Synonym: poliomyelitis immunoglobulin. (05 Mar 2000) |
| primary immune response | <immunology> The immune response to the first challenge by a particular antigen. Usually less extensive than the secondary immune response, being slower and shorter lived with smaller amounts of lower affinity antibody being produced. (18 Nov 1997) |
| hemic and immune systems | The organs involved in the production and functions of the blood and the cellular and molecular components providing defense against foreign organisms or substances. (12 Dec 1998) |