RAFF Exit Exam • Set 1 Question 14 of 30

While inhaling if carbon monoxide is present in the air. Co will mix with blood first

✓

Direct Answer

Option A: true

Carbon monoxide (CO) has a much higher affinity for haemoglobin than oxygen. Therefore, when inhaled, CO readily binds to blood haemoglobin, forming carboxyhaemoglobin, which impairs oxygen transport, even at low concentrations. (Medical/toxicology principles)

All Options

A

true (Correct Answer)

B

false

Detailed Explanation & Context

Carbon monoxide (CO) has a much higher affinity for haemoglobin than oxygen. Therefore, when inhaled, CO readily binds to blood haemoglobin, forming carboxyhaemoglobin, which impairs oxygen transport, even at low concentrations. (Medical/toxicology principles)

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).

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