2618-7
Methemoglobin/Hemoglobin.total in Red Blood Cells
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Part Description
LP15729-4 Methemoglobin
Methemoglobin is a form of the oxygen-carrying protein hemoglobin, in which the iron in the heme group is in the Fe3+ state, not the Fe2+ of normal hemoglobin. Metheomglobin appears blue and is unable to carry oxygen. The NADH-dependent enzyme methemoglobin reductase (AKA diaphorase I) is responsible for converting methemoglobin back to hemoglobin. Normally 1-2% of people's hemoglobin is methemoglobin, a higher percentage than this can be genetic or caused by exposure to various chemicals and depending on the level can cause health problems. A higher level of methemoglobin will tend to cause a pulse oximeter to read closer to 85% regardless of the true level of oxygen saturation. Methemoglobinemia can be caused by genetic abnormalities such as diaphorase I deficiency, or abnormal hemoglobin variants. It can also be caused by certain oxidizing drugs (benzocaine), antibiotics (trimethoprim or sulfanamides), analine dyes, metoclopramide, chlorates, bromates, and nitrates. Infants under 6 months are particularly susceptible when exposed to nitrates, benzocaine, or even dehydration. Methemoglobinemia can be treated with supplemental oxygen and methylene blue.
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Source: Wikipedia, Methemoglobin (Wikipedia)
Fully-Specified Name
- Component
- Methemoglobin/Hemoglobin.total
- Property
- MFr
- Time
- Pt
- System
- RBC
- Scale
- Qn
- Method
Additional Names
- Short Name
- MetHgb MFr RBC
- Display Name
- Methemoglobin (RBC) [Mass fraction]
- Consumer Name Alpha Get Info
- Methemoglobin/Total Hgb, Red blood cells
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 1.0
- Last Updated
- Version 2.70
- Order vs. Observation
- Observation
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| es-AR | Spanish (Argentina) | metahemoglobina/hemoglobina.total: |
| es-ES | Spanish (Spain) | Metahemoglobina/Hemoglobina.total: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Metahemoglobina / Hemoglobina total: |
| et-EE | Estonian (Estonia) | Methemoglobiin/hemoglobiin.üld: Synonyms: Erütrotsüüdid Juhuslik Kvantitatiivne |
| fr-CA | French (Canada) | Méthémoglobine/Hémoglobine.totale: |
| fr-FR | French (France) | Méthémoglobine/hémoglobine totale: |
| fr-BE | French (Belgium) | Méthémoglobine/Hémoglobine.totale: Synonyms: Hb Hb.totale |
| it-IT | Italian (Italy) | Metaemoglobina/Emoglobina.totale: Synonyms: Chimica Frazione di massa Globuli rossi Metemoglobina Punto nel tempo (episodio) |
| ko-KR | Korean (Korea, Republic Of) | 메트헤모글로빈/총혈색소: |
| nl-NL | Dutch (Netherlands) | methemoglobine/hemoglobine.totaal: Synonyms: rode bloedcellen |
| pl-PL | Polish (Poland) | Methemoglobina/hemoglobina całkowita: Synonyms: Methemoglobina Methemoglobina/Hemoglobina całkowita |
| pt-BR | Portuguese (Brazil) | Metahemoglobina/Hemoglobina.total: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Метгемогломин/Гемоглобин.общий: Synonyms: Количественный Массовая доля Точка во времени; |
| tr-TR | Turkish (Turkey) | Methemoglobin/Hemoglobin.total: Synonyms: RBC |
| zh-CN | Chinese (China) | 高铁血红蛋白/血红蛋白.总计: Synonyms: Hi; |
Example Units
| Unit | Source |
|---|---|
| % | Example UCUM Units |
| % | eCHN |
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