Blood analysis of a patient reveals an unusually high quantity of carboxyhemoglobin content. Which of the following conclusion is the most likely to be correct? The patient has been inhaling poliuted air containing unusually high content of

Options

A. (a) carbon dioxide
B. (b) carbon monoxide
C. (c) carbon disulphide
D. (d) chloroform

Answer

To solve the question regarding the high quantity of carboxyhemoglobin in a patient's blood, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Carboxyhemoglobin**:
- Carboxyhemoglobin is a complex formed when carbon monoxide (CO) binds to hemoglobin in the blood. This binding prevents hemoglobin from carrying oxygen effectively, leading to potential suffocation.

2. **Analyzing the Options**:
- The question provides several options regarding what the patient has been inhaling. We need to identify which substance is known to form carboxyhemoglobin.
- **Option A: Carbon Dioxide (CO2)** - This gas binds to hemoglobin to form carbaminohemoglobin, not carboxyhemoglobin. Therefore, this option is incorrect.
- **Option B: Carbon Monoxide (CO)** - This gas binds to hemoglobin to form carboxyhemoglobin. Given that the question specifies an unusually high quantity of carboxyhemoglobin, this option is likely correct.
- **Option C: Carbon Disulfide** - This chemical can lead to the formation of methaemoglobin, not carboxyhemoglobin. Thus, this option is incorrect.
- **Option D: Chloroform** - Similar to carbon disulfide, chloroform can also lead to the formation of methaemoglobin and not carboxyhemoglobin. Hence, this option is also incorrect.

3. **Conclusion**:
- Since carbon monoxide is the only substance listed that forms carboxyhemoglobin when inhaled, the most likely conclusion is that the patient has been inhaling polluted air containing unusually high content of **carbon monoxide**.

### Final Answer:
The patient has been inhaling polluted air containing unusually high content of **carbon monoxide**.

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