| 영문 | iron deficiency anemia | 한글 | 철결핍빈혈 |
|---|---|---|---|
| 설명 | 적혈구의 기능은 산소를 운반하는데 있다. 적혈구 속에 산소와 결합을 하여 산소를 운반하는 혈색소라는 물질이 있다. 철은 이 혈색소의 중요한 부분을 이루는 것으로 철이 없으면 혈색소가 만들어질 수가 없다. 혈색소가 없으면 역시 적혈구도 만들어지지 않으므로 체내에 철이 부족하면 빈혈이 생긴다. 이 철결핍성 빈혈은 빈혈의 원인 중에서 가장 흔한 것이다(약 25%를 차지한다). 철저장량의 저하-결핍, 혈청철농도의 저하, 트란스페린량 상승, 트란스페린포화도의 저하, 혈색소농도 또는 헤마토크리트의 저하, 저색소성대적혈구를 특징으로 하는 빈혈로서, 생체 내에서 철이 장기에 걸쳐 결핍되며 그 때문에 혈색소 생산 감소에 의해 일어난다. 창자에서의 철흡수량 부족, 철의 수요 증대(유아기, 사춘기, 임신), 철소실과잉(출혈)에 의해 일어나며, 특히 사춘기에서 폐경기까지의 여성에게 많다. 증상으로서는 얼굴창백, 피로감, 피부창백, 손톱 변화(스푼 모양) 등을 나타낸다. 구강 영역에서는 혀의 접촉통, 발적, 건조감, 삼킴곤란을 수반하면 플러머-빈슨(Plummer-Vinson)증후군이라고 한다. 혈액 소견은 혈청철은 저하하며, 철결합능력의 상승, 저색소성 작은적혈구성을 나타낸다. |
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| cold bend test | A test of the ability of a wire to be shaped; performed by counting the number of times a wire can be bent to a right angle and reversed at the same point before breaking; important in establishing specifications for orthodontic wires. (05 Mar 2000) |
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| cold-blooded | <physiology> Having a varying body temperature. See Homoiothermal. Origin: Gr. Changeable + E. Thermal, thermic. Source: Websters Dictionary (01 Mar 1998) |
| cold-blooded animal | <biology, zoology> An organism, such as a fish or reptile, that is cold-blooded, i.e., one whose internal body temperature varies with that of the environment. (09 Oct 1997) |
| cold bone lesions | <radiology> Overlying atenuation caused by pacemaker, barium, metal cross, wristwatch, radiation therapy, local vascular compromise, early osteomyelitis, tumour: neuroblastoma, renal cell carcinoma, thyroid carcinoma, anaplastic tumours (e.g. Reticulum cell sarcoma) (12 Dec 1998) |
| cold cautery | The surgical destruction of tissue via the application of extreme cold, aswith liquid nitrogen. (09 Oct 1997) |
| cold chain | A system of protection against high environmental temperatures for heat-labile vaccines, sera and other biological preparations. (05 Mar 2000) |
| cold, common | A viral upper respiratory tract infection. A contagious illness caused by a number of different types of viruses. Because of the great number of viruses that can cause a cold, the body never builds up resistance (immune) against all of them. For this reason, colds are a frequent and recurring problem. In fact, preschool children average 9 colds a year; those in kindergarten, 12 colds a year; and adolescents and adults, 7 colds per year. Going out into the cold weather has no effect on the spread of a cold. Antibiotics do not help the common cold. (12 Dec 1998) |
| cold compress | <orthopaedics> This may be ice packs wrapped in cloth to deliver a cold compress to an acutely injured muscle, joint or bone. Cold compresses are commonly indicated for most injuries in the first 24-48 hours. They should be applied only intermittently, with periods of time without the compress applied. (27 Sep 1997) |
| cold compresses | <orthopaedics> This may be ice packs wrapped in cloth to deliver a cold compress to an acutely injured muscle, joint or bone. Cold compresses are commonly indicated for most injuries in the first 24-48 hours. They should be applied only intermittently, with periods of time without the compress applied. (27 Sep 1997) |
| cold cone biopsy | <gynaecology, procedure> A procedure which excises a cone of tissue (mucous membrane) off the cervix for purpose of diagnostics and therapeutics (removes precancerous cells). See: cervical dysplasia. (27 Sep 1997) |
| cold cream | A water-in-oil emulsion of various oils, waxes, and water; the standard formula, rose water ointment, contains expressed almond oil, rose water, spermaceti, white paraffin wax, and sodium borate; used as a cleansing or lubricating cream. (05 Mar 2000) |
| cold cure resin | Autopolymerizing resin, any resin that can be polymerised by chemical catalysis rather than by the application of heat; used in dentistry for dental restoration, denture repair, and impression trays. Synonym: activated resin, cold cure resin, cold-curing resin, quick cure resin, self-curing resin. (05 Mar 2000) |
| cold erythema | Rash characterised by redness and itching, brought on by exposure to cold. (05 Mar 2000) |
| cold gangrene | A form of gangrene in which the involved part is dry and shriveled. Synonym: cold gangrene, mummification necrosis, mummification. (05 Mar 2000) |
| cold haemagglutinin disease | A condition associated with the presence of haemagglutinating autoantibody active in vivo but in vitro particularly or solely active in the cold; when the concentration of IgM antibody is high there may be increased serum viscosity, but clinical manifestations (due to haemagglutination) usually appear following exposure to cold; haemolysis usually is mild but may be severe, resulting in autoimmune haemolytic anaemia, cold antibody type. (05 Mar 2000) |