Question

Which of the following is true regarding the image provided? 

• A. EMLA contains ropivacaine and ligocaine.
• B. EMLA can lead to hemoglobinemia.
• C. EMLA contains 5 percent lignocaine.
• D. EMLA acts within 15 minutes.

Hint:

Always check the ingredients and possible side effects of any topical anesthetic. For EMLA, be aware of the risk of methemoglobinemia, especially with prolonged use.

Answer 1

The Correct Option is B

EMLA (Eutectic Mixture of Local Anesthetics) Overview:

EMLA is a topical anesthetic composed primarily of lidocaine and prilocaine. It's designed to numb the skin before certain medical procedures.

Analysis of Options:

• EMLA contains ropivacaine and lidocaine: This is incorrect; EMLA contains lidocaine and prilocaine, not ropivacaine.
• EMLA can lead to hemoglobinemia: This is correct. EMLA, due to the prilocaine component, can lead to methemoglobinemia, a condition where hemoglobin is modified, potentially impairing oxygen transportation.
• EMLA contains 5 percent lignocaine: This is incorrect; EMLA contains a combination of lidocaine and prilocaine in equal proportions, typically not 5% lidocaine alone.
• EMLA acts within 15 minutes: This is incorrect; EMLA typically requires longer to take effect, usually around 30-60 minutes for full efficacy.

Conclusion:

The correct statement regarding EMLA is that it can lead to hemoglobinemia due to the prilocaine component causing methemoglobinemia.