Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «H»:
HIV: Acronym for the
Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency
syndrome). HIV has also been called the human
lymphotropic virus type III, the lymphadenopathy-associated virus and
the lymphadenopathy virus. No matter
what name is applied, it is a retrovirus. (A r...
HIV infection, acute
HIV infection, acute: The body's initial reaction to infection by the HIV virus. Acute HIV infection is a flu-like syndrome that occurs immediately after a person contracts HIV (the human immunodeficiency virus 1, the agent that causes AIDS). The syndrome is characterized by fever, sore throat, head...
HIV infection, primary
HIV infection, primary: The first few months after infection with HIV (the human immunodeficiency virus).
During primary HIV infection, seroconversion occurs -- the appearance of detectable antibodies to HIV in the blood. It normally takes several weeks to several months for antibodies to the virus ...
HIV test: A test for the human immunodeficiency virus, the cause of
HIV tests are designed to detect antibodies to the HIV virus or the HIV virus itself.
The antibody tests are:
ELISA (enzyme-linked immunosorbent assay): a screening test used to detect infection with HIV. If positive, the ...
Hives: A raised, itchy area of skin that is usually a
sign of an allergic reaction. It can be rounded or flat-topped but is
always elevated above the surrounding skin. It reflects circumscribed
dermal edema (local swelling of the skin). The hives are usually well circumscribed but may be coalesce...
Hives from pressure
Hives from pressure: See Pressure urticaria....
HLA: The major human histocompatibility
system. HLA-typing is done before transplantation to determine the degree of
histocompatibility. HLA is an acronym for Human Leukocyte Antigens....
HLA-B57: An HLA type that is strongly associated with unusually slow progression of the human immunodeficiency virus (HIV) from the primary infection to AIDS. In other words, HLA-B57 provides some protection against HIV progression....
HMPS: Hereditary mixed polyposis syndrome....
hMPV: Human metapneumovirus....
HMS1: Homosexuality 1. An alleged gene for human male homosexuality. See: Gay gene....
HNP: Human neutrophil peptide....
HNPCC: Hereditary nonpolyposis colon cancer....
Hoarding, pathological: See: Pathological hoarding....
Hoarseness: Hoarseness is a
term referring to abnormal voice changes. Hoarseness may be manifested as a
voice that sounds breathy, strained, rough, raspy, or a voice that has higher or lower pitch. There are many causes of hoarseness, including viral laryngitis, vocal cord nodules, laryngeal papil...