Methemoglobinemia is a complication following the administration of_____________?
Correct answer: C. Prilocaine
- A. Lignocaine
- B. Benzacaine
- C. Prilocaine
- D. Procaine
Explanation
Prilocaine can produce methemoglobinaemia because its metabolites oxidise haemoglobin iron from the ferrous to the ferric state. Benzocaine can also rarely cause this complication, but prilocaine is the classic association in this list.
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