Methemoglobinemia laboratory findings: Difference between revisions
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{{Methemoglobinemia}} | {{Methemoglobinemia}} | ||
{{CMG}}; {{AE}}{{ | {{CMG}}; {{AE}}{{AKS}} | ||
==Overview== | ==Overview== | ||
Methemoglobinemia can be diagnosed with several laboratory findings such as ABG analysis, co-oximetry and pulse oximetry. | |||
==Laboratory Findings== | ==Laboratory Findings== | ||
'''ABG Analysis''' | '''ABG Analysis''' | ||
On routine ABG analysis the partial pressure of oxygen (PO2) value should in normal reference ranges in patients with methemoglobinemia. The reason lies in the fact that the ABG value represents the oxygen content in the plasma, and not the oxygen-carrying capacity of hemoglobin. | *On routine [[ABG analysis]] the [[partial pressure]] of [[oxygen]] ([[PO2]]) value should in normal reference ranges in patients with [[methemoglobinemia]]. The reason lies in the fact that the [[ABG]] value represents the [[oxygen]] content in the [[plasma]], and not the [[oxygen-carrying capacity of hemoglobin]].<ref name="pmid19082413">{{cite journal| author=do Nascimento TS, Pereira RO, de Mello HL, Costa J| title=Methemoglobinemia: from diagnosis to treatment. | journal=Rev Bras Anestesiol | year= 2008 | volume= 58 | issue= 6 | pages= 651-64 | pmid=19082413 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=19082413 }} </ref> <ref name="pmid22024786">{{cite journal| author=Skold A, Cosco DL, Klein R| title=Methemoglobinemia: pathogenesis, diagnosis, and management. | journal=South Med J | year= 2011 | volume= 104 | issue= 11 | pages= 757-61 | pmid=22024786 | doi=10.1097/SMJ.0b013e318232139f | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22024786 }} </ref> <ref name="pmid14579544">{{cite journal| author=Bradberry SM| title=Occupational methaemoglobinaemia. Mechanisms of production, features, diagnosis and management including the use of methylene blue. | journal=Toxicol Rev | year= 2003 | volume= 22 | issue= 1 | pages= 13-27 | pmid=14579544 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14579544 }} </ref> | ||
==References== | ==References== | ||
Latest revision as of 14:03, 15 August 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aksiniya Stevasarova, M.D.
Overview
Methemoglobinemia can be diagnosed with several laboratory findings such as ABG analysis, co-oximetry and pulse oximetry.
Laboratory Findings
ABG Analysis
- On routine ABG analysis the partial pressure of oxygen (PO2) value should in normal reference ranges in patients with methemoglobinemia. The reason lies in the fact that the ABG value represents the oxygen content in the plasma, and not the oxygen-carrying capacity of hemoglobin.[1] [2] [3]
References
- ↑ do Nascimento TS, Pereira RO, de Mello HL, Costa J (2008). "Methemoglobinemia: from diagnosis to treatment". Rev Bras Anestesiol. 58 (6): 651–64. PMID 19082413.
- ↑ Skold A, Cosco DL, Klein R (2011). "Methemoglobinemia: pathogenesis, diagnosis, and management". South Med J. 104 (11): 757–61. doi:10.1097/SMJ.0b013e318232139f. PMID 22024786.
- ↑ Bradberry SM (2003). "Occupational methaemoglobinaemia. Mechanisms of production, features, diagnosis and management including the use of methylene blue". Toxicol Rev. 22 (1): 13–27. PMID 14579544.