Reference ranges for blood tests: Difference between revisions

Revision as of 18:21, 14 February 2024

Revision as of 18:14, 12 April 2024

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* Measured directly in distance on the scales:

:<math>\log_{10} \frac{\text{molar mass}}{1000} = \text{distance to right (decades)} </math>,

where distance is the direct (not logarithmic) distance in number of [[Decade (log scale)|decades]] or "octaves" to the right the mass concentration is found. To translate from mass to molar concentration, the dividend ([[molar mass]] and the divisor (1000) in the [[Division (mathematics)|division]] change places, or, alternatively, ''distance to right'' is changed to ''distance to left''. Substances with a molar mass around 1000g/mol (e.g. thyroxine) are almost vertically aligned in the mass and molar images. Adrenocorticotropic hormone, on the other hand, with a molar mass of 4540,<ref>[https://www.uniprot.org/uniprot/P01189 PROOPIOMELANOCORTIN; NCBI -->/ POMC] Retrieved on September 28, 2009</ref> is 0.7 decades to the right in the mass image. Substances with molar mass below 1000g/mol (e.g. electrolytes and metabolites) would have "negative" distance, that is, masses deviating to the left.

Many substances given in mass concentration are not given in molar amount because they haven't been added to the article.

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|rowspan=2| [[pH]] || Arterial || 7.34,<ref name=southwest/> 7.35<ref name=firstaid/> || 7.44,<ref name=southwest/> 7.45<ref name=firstaid/> ||

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| Venous || 7.31<ref name=brookside>[http://www.brooksidepress.org/Products/OperationalMedicine/DATA/operationalmed/Lab/ABG_ArterialBloodGas.htm The Medical Education Division of the Brookside Associates--> / ABG (Arterial Blood Gas)] Retrieved on Dec 6, 2009</ref> || 7.41<ref name=brookside/> ||

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| [[Vitamin A]] || || 30<ref name=bloodbook/> || 65<ref name=bloodbook/> || || || µg/dL

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|rowspan=2| [[Vitamin B9|Vitamin B₉]] <br /> (Folic acid/Folate) – '''Serum''' ||rowspan=2| Age > 1 year || 3.0<ref name=cmft>[http://www.cmft.nhs.uk/directorates/labmedicine/USERGUIDE/pdfs/Haem%20-%20Coagulation%20Ref%20Ranges.pdf Central Manchester University Hospitals -->/ Reference ranges] {{Webarchive|url=https://web.archive.org/web/20121130102124/http://www.cmft.nhs.uk/directorates/labmedicine/USERGUIDE/pdfs/Haem%20-%20Coagulation%20Ref%20Ranges.pdf |date=2012-11-30 }} Retrieved on July 9, 2009</ref> || 16<ref name=cmft/> || 5<ref name=Chandler>[http://www.hosp.uky.edu/Clinlab/report.pdf University of Kentucky Chandler Medical Center > Clinical Lab Reference Range Guide] Retrieved on April 28, 2009</ref> || || ng/mL or μg/L

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| 6.8<ref name=b9-mass>Derived from mass values using molar mass of 441 mol−1</ref> || 36<ref name=b9-mass/> || 11<ref name=b9-mass/> || || nmol/L