Metabolic acidosis epidemiology and demographics: Difference between revisions
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Most studies only had serum [[bicarbonate]] concentrations available and defined [[metabolic acidosis]] using the [[bicarbonate]] levels as standard. At time no meaningful contribution of respiratory system was considered in metabolic acidosis. Most epidemiologic studies have measured serum bicarbonate using an autoanalyzer using either an electrode-based or enzymatic method. The specimens are often shipped to a [[Central laboratory facility|central laboratory]] by air to minimize assay variability. Scientists found that there was a difference in the bicarbonate levels between measurement of blood at a local laboratory and those shipped to a central [[laboratory]]. Bicarbonate measured at a central laboratory was always lower than that measured at a [[Laboratory|local laboratory]]. Then it was hypothesized that it is due to potential gas leak from a different [[atmospheric pressure]] during air travel. The time that samples were exposed to air in commercial laboratories also contributed to the variability in [[bicarbonate]] values. There are few studies that measured [[Sample (statistics)|arterialized venous blood]] gas. For sampling, The patient’s hand or wrist have been placed in a [[warmer]] set to 42°C for a minimum of 15 minutes for Arterialized venous blood gas samples. As it provides a full assessment of [[Acid-base|acid-base status]] and is usually measured at the point of care, thus eliminating the errors that might have occurred during specimen transport. Due to cumbersome method of obtaining arterial blood gas sample, arterialized venous blood gas is often used for research purpose.<ref name="pmid10845818">{{cite journal| author=Kirschbaum B| title=Spurious metabolic acidosis in hemodialysis patients. | journal=Am J Kidney Dis | year= 2000 | volume= 35 | issue= 6 | pages= 1068-71 | pmid=10845818 | doi=10.1016/s0272-6386(00)70041-2 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10845818 }}</ref><ref name="pmid11325696">{{cite journal| author=Zazra JJ, Jani CM, Rosenblum S| title=Are the results of carbon dioxide analysis affected by shipping blood samples? | journal=Am J Kidney Dis | year= 2001 | volume= 37 | issue= 5 | pages= 1105-6 | pmid=11325696 | doi=10.1016/s0272-6386(05)80031-9 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11325696 }}</ref><ref name="pmidhttps://doi.org/10.1053/j.ackd.2017.08.003">{{cite journal| author=Schmoldt A, Benthe HF, Haberland G| title=Digitoxin metabolism by rat liver microsomes. | journal=Biochem Pharmacol | year= 1975 | volume= 24 | issue= 17 | pages= 1639-41 | pmid=https://doi.org/10.1053/j.ackd.2017.08.003 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10 }}</ref> | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
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[[Category:Needs content]] | [[Category:Needs content]] | ||
[[Category: | [[Category:Electrolyte disturbance]] | ||
[[Category:Inborn errors of metabolism]] | |||
[[Category:Medical tests]] | |||
[[Category:Laboratory Test]] | |||
[[Category:Nephrology]] | [[Category:Nephrology]] | ||
[[Category:Intensive care medicine]] | |||
[[Category:Emergency medicine]] | |||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Most studies only had serum bicarbonate concentrations available and defined metabolic acidosis using the bicarbonate levels as standard. At time no meaningful contribution of respiratory system was considered in metabolic acidosis. Most epidemiologic studies have measured serum bicarbonate using an autoanalyzer using either an electrode-based or enzymatic method. The specimens are often shipped to a central laboratory by air to minimize assay variability. Scientists found that there was a difference in the bicarbonate levels between measurement of blood at a local laboratory and those shipped to a central laboratory. Bicarbonate measured at a central laboratory was always lower than that measured at a local laboratory. Then it was hypothesized that it is due to potential gas leak from a different atmospheric pressure during air travel. The time that samples were exposed to air in commercial laboratories also contributed to the variability in bicarbonate values. There are few studies that measured arterialized venous blood gas. For sampling, The patient’s hand or wrist have been placed in a warmer set to 42°C for a minimum of 15 minutes for Arterialized venous blood gas samples. As it provides a full assessment of acid-base status and is usually measured at the point of care, thus eliminating the errors that might have occurred during specimen transport. Due to cumbersome method of obtaining arterial blood gas sample, arterialized venous blood gas is often used for research purpose.[1][2][3]
References
- ↑ Kirschbaum B (2000). "Spurious metabolic acidosis in hemodialysis patients". Am J Kidney Dis. 35 (6): 1068–71. doi:10.1016/s0272-6386(00)70041-2. PMID 10845818.
- ↑ Zazra JJ, Jani CM, Rosenblum S (2001). "Are the results of carbon dioxide analysis affected by shipping blood samples?". Am J Kidney Dis. 37 (5): 1105–6. doi:10.1016/s0272-6386(05)80031-9. PMID 11325696.
- ↑ Schmoldt A, Benthe HF, Haberland G (1975). "Digitoxin metabolism by rat liver microsomes". Biochem Pharmacol. 24 (17): 1639–41. PMID https://doi.org/10.1053/j.ackd.2017.08.003 Check
|pmid=value (help).