Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?

Moderate

A

The patient gas been inhaling polluted air containing usually high content of Carbon disulphide.
B

The patient has been inhaling polluted air containing usually high content Chloroform.
C

The patient has been inhaling polluted air containing usually high content of Carbon dioxide.
D

The patient has been inhaling polluted air containing usually high content of Carbon monoxide.

Solution

CO binds to hemoglobin with much greater affinity than oxygen, forming carboxyhemoglobin (COHb) and resulting in impaired oxygen transport and utilization.
CO₂ is carried by haemoglobin as carbamino-haemoglobin (about 20-25 per cent).

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