Arbitrary catalytic-activity concentration (arb.cat.c.)
Abbreviation |
Arb.cat.c. | ||
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Definition in words |
Arbitrary catalytic-activity of component B divided by the volume of system 1 |
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Definition by equation |
Note 1: Component B is a catalytic component. Note 2: kprocedure=an arbitrary determined factor defined by the method procedure used. |
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Systematic terms |
Arbitrary catalytic-activity of component B | ||
Result type |
Rational scale |
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Unit |
International unit (IU) or procedure defined unit (p.d.u.) (non-SI units) | ||
Special rule(s) in the NPU syntax |
Component B is termed according to the International Enzyme Nomenclature (see Medical and metrological vocabulary). “Procedure” is stated in the specification to the kind-of-property in the NPU definition. “Procedure” indicates that the measurement procedure must be stated somewhere else than the NPU code and there may be difficulties in comparing values for the same NPU code. If the unit is an International Unit (IU), an international certified reference material (e.g. WHO reference material) is specified in the specification to the kind-of-property. If there exist no an international certified reference material, the laboratory can specify the unit at the placeholder, procedure defined unit. |
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Reference |
Ferard G, Dybkaer R, Fuentes-Arderiu X. Compendium of Terminology and Nomenclature of Properties in Clinical Laboratory Sciences : Recommendations 2016. 1 ed: Royal Society of Chemistry; 2016. 182 p. |
Laboratory field |
Examples |
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Clinical chemistry |
Example 1 |
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Generic abbreviated |
NPU54596 Ercs(B)—Thiopurine S-methyltransferase; arb.cat.c.(37 °C; proc.) = ? (p.d.u.) | ||
Full result | NPU54596 Erythrocytes(Blood)—Thiopurine S-methyltransferase; arbitrary catalytic-activity concentration(37 °C; procedure) = 25 arbitrary unit/L | ||
Abbreviated result | NPU54596 Ercs(B)—Thiopurine S-methyltransferase; arb.cat.c.(37 °C; proc.) = 25 arbitrary unit/L | ||
Written expression | The arbitrary catalytic-activity of Thiopurine S-methyltransferase of erythrocytes in Mr. Smith’s blood is [25] arbitrary unit/L. The measurement is performed at 37 °C according to a procedure defined by the laboratory. | ||
Equation | |||
Notes
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“Arbitrary unit/L” was chosen by a local laboratory as a proprietary measurement unit and not an accepted international unit. | ||
Clinical Immunology and Blood Banking |
Example 2 | ||
Generic abbreviated |
NPU28569 P—Alternative-complement-pathway C3/C5 convertase; arb.cat.c.(erythrol.; proc.) = ? (p.d.u.) | ||
Full result | NPU28569 Plasma—Alternative-complement-pathway C3/C5 convertase; arbitrary catalytic-activity concentration(erythrolysis; procedure) = 200 arbitrary unit/L | ||
Abbreviated form with a result | NPU28569 P—Alternative-complement-pathway C3/C5 convertase; arb.cat.c.(erythrol.; proc.) = 200 arbitrary unit/L | ||
Written expression | The arbitrary catalytic-activity of Alternative-complement-pathway C3/C5 convertase in Mr. Smith’s plasma is [200] arbitrary unit/L. The measurement is performed according to a procedure defined by the laboratory. | ||
Equation | |||
Notes | “Arbitrary unit/L” was chosen by a local laboratory as a proprietary measurement unit and not an accepted international unit. | ||
Molecular Biology and Genetics |
Example 3
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Generic abbreviated |
NPU27632 B—Biotinidase; arb.cat.c.(proc.) = ? (p.d.u.) | ||
Full result | NPU27632 Blood—Biotinidase; arbitrary catalytic-activity concentration(procedure) = 75 arbitrary unit/L | ||
Abbreviated result | NPU27632 B—Biotinidase; arb.cat.c.(proc.) = 75 arbitrary unit/L | ||
Written expression | The arbitrary catalytic-activity of Biotinidase in Mr. Smith’s blood is [75] arbitrary unit/L. The measurement is performed according to a procedure defined by the laboratory. | ||
Equation | |||
Notes | “Arbitrary unit/L” was chosen by a local laboratory as a proprietary measurement unit and not an accepted international unit. | ||
Thrombosis and haemostasis |
Example 4 | ||
Generic abbreviated form | NPU28432 B—Coagulum lysis; arb.cat.c.(tissue f.induc.coag.; proc.) = ? (p.d.u.) | ||
Full form with a result | NPU28432 Blood—Coagulum lysis; arbitrary catalytic-activity concentration(Coagulation, tissue factor-induced; procedure) = 10 arbitrary unit/L | ||
Abbreviated form with a result | NPU28432 B—Coagulum lysis; arb.cat.c.(tissue f.induc.coag.; proc.) = 10 arbitrary unit/L | ||
Written expression | The arbitrary catalytic-activity of Coagulum lysis in Mr. Smith’s blood is [10] arbitrary unit/L. The measurement is performed according to a tissue factor-induced Coagulation procedure defined by the laboratory. | ||
Equation | |
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Notes | “Arbitrary unit/L” was chosen by a local laboratory as a proprietary measurement unit and not an accepted international unit. | ||
Reference |
NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx |
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Kind-of-property
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Nominal kind-of-property
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Kind-of-quantity
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Ordinal kind-of-quantity
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Arbitrary catalytic-activity concentration
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Reference |
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Date | Term | Note | Reference |
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1996-01-01 | arbitrary catalytic-activity concentration | Term established. | NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx |
NPU term identifier |
QU50127 |