Relative time ratio (rel. time ratio)
Abbreviation |
Rel. time ratio | ||
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Definition in words |
Time ratio of component B in system 1 divided by time ratio of component B in system 2 Note 1: System 1 is not related to system 2 Note 2: Component F ≠ Component G (≠ = “not equal to”) Note 3: Component F ∉ Component G (∉ = “is not an element of”) |
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Definition by equation
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Where |
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Systematic terms
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Relative time ratio of component B in system 1 | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
10-6, 10-3, 1 (one), 103, 106, etc. The unit “1” (one) is ommited in the NPU syntax. |
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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. Doi:10.1039/9781782622451. |
Laboratory field |
Examples |
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Thrombosis and Haemostasis
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Example 1 | |
Generic abbreviated |
NPU57071 P—Coagulation, russelactivase X-induced; rel. time ratio(without/with phospholipid incub.; actual/norm; proc.) = ? | |
Full result | NPU57071 Plasma—Coagulation, russelactivase X-induced; relative time ratio(without/with phospholipid incubation; actual/norm; procedure) = 0.96 x one | |
Abbreviated result | NPU57071 P—Coagulation, russelactivase X-induced; rel. time ratio(without/with phospholipid incub.; actual/norm; proc.) = 0.96 | |
Written expression | The relative time ratio of Coagulation, russelactivase X-induced without and with phospholipid incubation in Mrs. Smith’s Plasma is [0.96]. The calculation is performed by dividing the time ratio of Coagulation, russelactivase X-induced (without/with phospholipid incub.) in Mr. Smith’s Plasma (actual) with the time ratio of Coagulation, russelactivase X-induced with phospholipid incubation in a norm (reference system). The measurement is performed according to procedure defined by the laboratory. | |
Equation
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Notes
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“Actual” refers to the Mr. Smith’s result. “Norm” is a reference system that is defined by the laboratory. |
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Example 2 | ||
Generic abbreviated |
NPU57086 P—Coagulation, surface-induced(Silicon dioxide); rel. time ratio(without/with phospholipid incub.; actual/norm; proc.) = ? | |
Full result | NPU57086 Plasma—Coagulation, surface-induced(Silicon dioxide); relative time ratio(without/with phospholipid incubation; actual/norm; procedure) = 0.64 | |
Abbreviated result | NPU57086 P—Coagulation, surface-induced(Silicon dioxide); rel. time ratio(without/with phospholipid incub.; actual/norm; proc.) = 0.64 | |
Written expression | The relative time ratio of Coagulation, surface-induced(Silicon dioxide) without and with phospholipid incubation in Mrs. Smith’s Plasma is [0.64]. The calculation is performed by dividing the time ratio of Coagulation, surface-induced(Silicon dioxide) without phospholipid incubation in Mr. Smith’s Plasma (actual) with the time ratio of Coagulation, surface-induced(Silicon dioxide) with phospholipid incubation in a norm (reference system). The measurement is performed according to procedure defined by the laboratory. | |
Equation |
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Notes |
“Actual” refers to the Mr. Smith’s result. “Norm” is a reference system that is defined by the laboratory. |
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Reference |
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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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Relative time ratio
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Reference |
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Date | Term | Note |
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2016-12-14 | Relative time ratio | Term established |
NPU term identifier |
QU103727 |