What Are High Ferritin Levels?
Methemoglobin is an oxide of hemoglobin. Iron is a trivalent derivative and is russet. Under weakly acidic conditions, it has a specific absorption of 60 nanometers long and appears slightly green (acid methemoglobin), but under alkaline conditions, this specific absorption disappears and presents a darker red (basic methemoglobin).
Methemoglobin
- Chinese name
- Methemoglobin
- Foreign name
- methemoglobin
- Meaning
- Hemoglobin oxide
- colour
- Auburn
- Methemoglobin is an oxide of hemoglobin. Iron is a trivalent derivative and is russet. Under weakly acidic conditions, it has a specific absorption of 60 nanometers long and appears slightly green (acid methemoglobin), but under alkaline conditions, this specific absorption disappears and presents a darker red (basic methemoglobin).
- Unlike derivatives of divalent iron, it cannot bind to O2 and CO2, but can be combined with CN-, N-3, F-,
Basic information of methemoglobin
- Chinese name: methemoglobin
- English name: MetHb
- Physiological significance: It is mainly used to determine the content of methemoglobin in plasma, and is used to diagnose methemoglobinemia.
Clinical significance of methemoglobin
- Increases are seen in:
- (1) Congenital methemoglobinemia.
- (2) Toxic methemoglobinemia (acquired symptoms), generally has a history of taking certain drugs.
- (3) Severe intravascular hemolysis.
- Normal value: Reference value: 0.1-0.4g / dL
- Laboratory introduction: This test is mainly used to determine the content of methemoglobin in the plasma, and is used to diagnose patients with methemoglobinemia.