Relative entitic number (rel.entitic num.)

Abbreviation

Rel.entitic num.

Definition in words

Entitic number of component B in system 1 divided by entitic number of component B in system 2

Note: System 1 is not related to system 2

Definition by equation

Systematic terms

Relative entitic number of component B in system 1
Ratio scale
  • Value sets are positive numerical values
  • Algebraic operations are allowed (a=nb; a≠nb)
Numerical values from 0-∞

Unit

10-6, 10-3, 1 (one), 103, 106, etc.

The unit “1” (one) is ommited in the NPU syntax.

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

Clinical Immunology and Biobanking

Example 1
Generic abbreviated
NPU28328 Trcs(B)—Platelet glycoprotein GPIb-IX Complex; rel.entitic num.(actual/norm) = ?
Full result NPU28328 Trcs(B)—Platelet glycoprotein GPIb-IX Complex; rel.entitic num.(actual/norm) = 0.95 x one
Abbreviated result NPU28328 Trcs(B)—Platelet glycoprotein GPIb-IX Complex; rel.entitic num.(actual/norm) = 0.95
Written expression The relative entitic number of Platelet glycoprotein GPIb-IX Complex of thrombocyte in Mr. Smith’s blood is [0.95]. The calculation is performed by dividing the entitic number of Platelet glycoprotein GPIb-IX Complex in Mr. Smith’s blood (actual) with the entitic number of Platelet glycoprotein GPIb-IX Complex in a norm (reference system).
Equation

Example 2
Generic abbreviated
NPU56038 Granulocytes(B)—Reactive Oxygen Species; rel.entitic num.(E.Coli-induced; stim./unstim.; proc.) = ?
Full result NPU56038 Granulocytes(Blood)—Reactive Oxygen Species; relative entitic number(E.Coli-induced; stimulated/unstimulated; procedure) = 0.10 x one
Abbreviated result NPU56038 Granulocytes(B)—Reactive Oxygen Species; rel.entitic num.(E.Coli-induced; stim./unstim.; proc.) = 0.10
Written expression The relative entitic number of Reactive Oxygen Species of granulocyte in Mr. Smith’s blood is [0.10]. The calculation is performed by dividing the entitic number of E.Coli-induced Reactive Oxygen Species (stimulated) with the entitic number of Reactive Oxygen Species (unstimulated), in Mr. Smith’s blood.
Equation

Reference

NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx
  • Kind-of-property

    • Nominal kind-of-property

    • Kind-of-quantity

      • Unitary kind-of-quantity

        • Rational unitary kind-of-quantity

          • Relative entitic number

Reference

  • Dybkaer R. Concept system on ‘quantity’: formation and terminology. Accredit Qual Assur. 2013;18(3):253-60.
  • Dybkaer R. ISO terminological analysis of the VIM3 concepts ‘quantity’ and ‘kind-of-quantity’. Metrologia. 2010;47(3):127-34.
Date Term Note
2003-04-02 Relative entitic number Term established