The need for a standardization of quantities and units in clinical chemistry. To view other topics, please sign in or purchase a subscription. Units and systems of measurement style manual cochrane. Use tools and equipment appropriate to scientific investigations. Distinguish milligram, milliliter, and milliequivalent. American college of physicians, 1997 ocolc608887944.
Iso 11240 units of measurement specifies rules for the usage and coded representation of units of measurement for exchanging information about quantitative medicinal product. A complete range of units for all measurements is obtained by appropriate combi nation of units. Iso 2955 5 is a standard notation for units designed for the limited character set available on many computers. American college of physicians, 1997 ocolc607050880 online version. Quantities and units in clinical biochemistry sage journals. International system of units simple english wikipedia. Converting units of measure measurement studentclass goal students will use measurement units to solve problems and convert between measurement systems. Use metric measurement devices in an investigation. State equivalent values of weight mass and volume used in metric dose calculations. Units by themselves numbers by themselves dont make sense. G u a r d i a ns of t h e s i ampere a electric current the. In 1966, the international federation of clinical chemistry ifcc recommended the use of.
Units of measure in clinical information systems article pdf available in journal of the american medical informatics association 62. Outcome lesson objective given a unit of measurement, students will be able to convert it to other units of measurement and will be able to use it to solve contextual problems. Dimensions and units for physical quantities mksq system 6,7 a. Recommendations for the presentation of thermodynamic and related data in biology recommendations 1985 on page 1406 pac, 1996, 68, 957. The objective is to establish an agencywide policy on the acceptance. Hospital physicists association, institute of medical laboratory. Henrys clinical diagnosis and management by laboratory methods. Units of measure in clinical information systems ncbi.
The kelvin and the candela were added as base units for thermodynamic temperature and luminous intensity in 1960. Pdf units of measure in clinical information systems. Why do we need to be able to to makemeasure sense, things. This global change involved moving away from material artefacts e. The concentration of glucose in the blood indicates the subjects glycemia at the time of blood sampling. For the clinical pathologist and the research scientist, such a system eases calculations and enhances. Description of units mechanical, electric, magnetic 4 iii. It comprises a coherent system of units of measurement starting with seven base units, which are the second the unit of time with the symbol s, metre. The two systems used for specifying units of measure are the english and metric systems. In surveying, the most commonly used units define quantities of length or distance, area, volume, and horizontal or vertical angles. Scribd is the worlds largest social reading and publishing site. Establishing international units iu and the challenges of.
Two specific units, of particular importance in clinical biochemistry are described in more detail and some problems id applying them are discussed. Nursing central is an awardwinning, complete mobile solution for nurses and students. Glucose and hemoglobin a1c hba1c provide complementary information and both are used to assess an individuals glycemic status. Units and conversion factors table of contents section page references 3 i. The international system of units is the standard modern form of the metric system.
Measurement magnitudes of measurements are typically given in terms of a specific unit. Dimensions of esu and emu electric and magnetic quantities 5 v. Bipm is the intergovernmental organisation through which member states act together on matters related to measurement science and measurement standards. Morris, principles of instrumentation and measurement, 3 rd ed. Evaluation of glycemia is used for the diagnosis and management of patients with diabetes. Uniformisation of units of measurement in clinical chemistry in. It comprises a coherent system of units of measurement built on seven base units, which are the second, metre, kilogram, ampere, kelvin, mole, candela. Glossary of terms in quantities and units in clinical chemistry iupacifcc recommendations 1996 on page 963. It is the only system of measurement with an official status in nearly every country in the world. Technology, royal college of pathologists, section of measurement in medicine of the royal. In any clinical trial submission, laboratory test results are always necessary. The conversion factors for the above units and units derived from them are as follows. The major table lists normalized values of clinical chemical analytes and hematologic measurements.
Distance traveled by light in a vacuum in 1299,792,458 seconds. Measurement units and conversions for medications nurse key. The internationally adopted system which defines or expresses all quantities in terms of seven basic units, the six used by chemists being. Extensive changes adopted abroad now appear in foreign medical literature. However, blood glucose concentrations are modified by numerous. Measurement of concentrations of human serum immunoglobulins.
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