| 영문 | isotope | 한글 | 동위원소 |
|---|---|---|---|
| 설명 | 원자번호는 같지만 질량 수가 다른 원소. 동위체라고도 한다. Isotope라는 명칭은 F. 소디가 명명한 것이다. 동위원소는 보통원소기호의 왼쪽 어깨에 질량수를 붙여 표시한다. 일반적으로 동위원소는 성질이 비슷하지만 원자번호가 작은 원소, 예를 들어 수소의 동위원소(수소 1H, 중수소 2H, 3중수소 3H) 등에서는 화학적 성질까지도 약간 다른데가 있다. 동위원소에는 안정한 동위원소와 불안정한 방사성동위원소가 있다. |
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| 영문 | clearance | 한글 | 청소 |
|---|---|---|---|
| 설명 | 단위시간에 어떤 물질이 분비기관을 통하여 혈액에서 제거되는 현상 혹은 제거할 수 있는 능력. 치과용어로는 지대치 형성된 치아의 교합면과 대합치 교합면과의 거리 또는 대합치 교합면간의 거리를 주로 나타내고, 기타 서로 마주보고 있는 물체간의 거리를 나타낼 경우에도 적용된다. |
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| 영문 | creatinine clearance | 한글 | 크레아티닌 청소 |
|---|---|---|---|
| 설명 | 청소(clearance)란 피속에서 어떤 물질을 제거하는 속도를 의미한다. 피속에서 어떤 물질을 제거하는 것은 주로 콩팥의 역할이므로 콩팥에서의 어떤 물질이 제거되는 청소율이 임상적으로 중요하다. 콩팥에서의 어떤 물질의 청소율은 다음과 같은 식으로 구해진다. C(creatinine clearance) = V × U / P C란 콩팥의 청소율의 약자이고 V는 1분당 나오는 소변의 양으로 ml/min이란 단위로 표시한다. 그리고 U란 소변에 들어 있는 청소율 측정의 대상이 되는 물질의 농도이다. P란 청소율 측정의 대상이 되는 물질의 혈액 중의 농도를 나타낸다. 크레아티닌 청소란 크레아틴이라는 물질의 청소율을 나타내는 말로 콩팥 기능의 평가에 많이 사용되는 지표이다. |
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| BIC | blood isotope clearance |
|---|---|
| DIC | dicarbazine; differential interference contrast microscopy; diffuse intravascular coagulation; direc... |
| ICG | indocyanine green; isotope cisternography |
| ID-MS | isotope dilution-mass spectrometry |
| ING | isotope nephrogram |
| GC-C-IRMS | Gas chromatography-combustion-isotope ratio mass spectrometry |
|---|---|
| IDMS | Isotope dilution mass spectrometry |
| IRMS | Isotope ratio mass spectrometry |
| KIE | Kinetic isotope effects |
| RI | Radio Isotope |
| isotope clearance | The rate at which an isotope is removed (usually by blood flow) from a tissue or organ such as the brain. (05 Mar 2000) |
|---|
| radioactive isotope | <physics, radiobiology> An isotope of an element that has an unstable nucleus, it tries to stabilise itself by giving off ionising radiation. (09 Oct 1997) |
|---|---|
| stable isotope | A nonradioactive nuclide; an isotope that shows no tendency to undergo radioactive decomposition. (05 Mar 2000) |
| daughter isotope | An element produced by radioactive decay of another. See: radionuclide generator, cow. (05 Mar 2000) |
| isotope | <radiobiology> One of several nuclides having the same number of protons in their nuclei and hence having the same atomic number, but differing in the number of neutrons and therefore, in the mass number. Almost identical chemical properties exist between isotopes of a particular element. The use of this term as a synonym for nuclide is to be discouraged. (16 Dec 1997) |
| isotope labeling | Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labelled substances unless the methods of labeling are substantively discussed. Tracers that may be labelled include chemical substances, cells, or microorganisms. (12 Dec 1998) |
| amylase-creatinine clearance ratio | A test for the diagnosis of acute pancreatitis; it is determined by measuring amylase and creatinine in serum and urine in apparently healthy individuals the renal clearance of amylase is less than 5% that of creatinine; in acute pancreatitis the ratio is said to be greater than 0.05 or 5%. (05 Mar 2000) |
| ANP clearance receptors | Cell surface proteins that bind atrial natriuretic peptide and ANP fragments without initiating biological action. (05 Mar 2000) |
| p-aminohippurate clearance | A good measure of renal plasma flow, which it slightly underestimates; when a low plasma concentration of p-aminohippurate (PAH) is maintained by intravenous infusion, the kidney extracts and excretes almost all of the PAH from the plasma before it reaches the renal vein. (05 Mar 2000) |
| maximum urea clearance | The urea clearance when the urine flow exceeds 2 ml/min; normal value is about 75 ml blood/min per 1.73 m2 body surface area. (05 Mar 2000) |
| metabolic clearance rate | Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site. (12 Dec 1998) |
| clearance | 1. The process of clearing. 2. <physiology> The rate at which a substance is removed from the blood. (18 Nov 1997) |
| mucociliary clearance | Rate of ciliary and secretory activity of the respiratory submucosal glands. It is a non-specific host defense mechanism, measurable in vivo by mucus transfer, ciliary beat frequency, and clearance of radioactive tracers. (12 Dec 1998) |
| creatinine clearance | Measurement of the clearance of endogenous creatinine, used for evaluating the glomerular filtration rate (GFR). (05 Mar 2000) |
| creatinine clearance test | <investigation, nephrology> A test of the amount of creatinine in blood or in blood and urine shows if the kidneys are working right or if one or both are diseased. (09 Oct 1997) |
| standard urea clearance | The value obtained when the square root of the urine flow (when below 2 ml/min) is multiplied by the urine urea concentration and divided by the whole blood urea concentration; represents an old empirical adjustment for the effect of low urine flow on urea excretion; sometimes corrected for body size by dividing by some function of body weight or surface area. Later, plasma concentration was substituted for blood concentration in the calculation. The normal value is about 54 ml/min per 1.73 m2 in an adult person. Synonym: Van Slyke's formula. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|