Threshold mass concentration (threshold mass c.)
Abbreviation |
Threshold mass c. | ||
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Definition in words |
Lowest value of mass concentration of component B to stimulate a specific reaction in system 1 Note 1: “Threshold is a modifier indicating that the kind-of-property is defined as the lowest value of a property eliciting a reaction given by the component and specified by the procedure” (Ref 1) Note 2: The “specified reaction” must be described somewhere else than in the NPU syntax |
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Definition by equation
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Systematic terms
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Threshold mass concentration of component B in system 1 | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
µg/L, mg/L, g/L etc. | ||
Reference |
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Laboratory field |
Examples |
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Clinical Microbiology |
Example 1 | |
Generic abbreviated |
NPU54391 Syst—Metronidazole; threshold mass c. = ? mg/L | |
Full result | NPU54391 System—Metronidazole; threshold mass concentration = 4 milligram per liter | |
Abbreviated result | NPU54391 Syst—Metronidazole; threshold mass c. = 4 mg/L | |
Written expression | The threshold mass concentration of Metronidazole in Mr. Smith’s blood is [4] mg/L. | |
Equation
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Notes
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Thrombosis and Haemostasis |
Example 2
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Generic abbreviated |
NPU01113 Trcs(B)—Aggregation, ristocetin-induced; threshold mass c.(proc.) = ? g/L | |
Full result | NPU01113 Thrombocytes(Blood)—Aggregation, ristocetin-induced; threshold mass concentration(procedure) = 1.01 gram per liter | |
Abbreviated result | NPU01113 Trcs(B)—Aggregation, ristocetin-induced; threshold mass c.(proc.) = 1.01 g/L | |
Written expression | The threshold mass concentration of Thrombocytes’ Aggregation, ristocetin-induced in Mr. Smith’s blood is [1.01] g/L. The measurement is performed according to a procedure defined by the laboratory. | |
Equation | ||
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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Unitary kind-of-quantity
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Rational unitary kind-of-quantity
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Threshold mass concentration
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Reference |
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Date | Term | Note |
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1996-01-01 | Threshold mass concentration | Term established |
NPU term identifier |
QU50025 |