Question 139 · LEK · Carbon monoxide poisoning
The laboratory test confirming carbon monoxide intoxication determines the concentration of carboxyhemoglobin (HbCO). Its values equal to 5%:
- A. indicate severe CO intoxication.
- B. are normal in habitual tobacco smokers.
- C. are an indication for hyperbaric oxygen therapy, even if clinical signs of the intoxication are not present.
- D. are an indication for the transfusion of 300 mL of packed red blood cells.
- E. are an indication for naloxone administration.
Hint
Compare 5% COHb with the usual background levels in non-smokers and in heavy smokers.
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