Explanation • Reduced hemoglobin: It results from release of | NEET PG/NEXT (MCQs)

Explanation

• Reduced hemoglobin: It results from release of Oxygen from OxyHb
• Carbaminohemoglobin: In this, Carbon di oxide is attached to globin part of Hb. The affinity of Hb for Carbon di oxide is about 20 times that for Oxygen
• Carboxyhemoglobin: Carbon monoxide is attached to Hb where O2 is normally attached. The affinity of Hb for CO is 200-300 times that for Oxygen. It is normally present in small amounts, but in large amount in smokers in whom it impairs Oxygen transport.
• Methemoglobin: When blood is exposed to some drugs, or oxidizing agents in vitro or in vivo, the ferrous iron of Hb is converted into ferric iron, forming MetHb, which is dark in color. When present in large amounts, it gives a dusky appearance to the skin. Small amounts of MetHb are formed normally but an enzyme system converts it back to Hb.