All of the following procedure can be done under EMLA cream except-
**Core Concept**
EMLA (Eutectic Mixture of Local Anesthetics) cream is a topical anesthetic agent used to numb the skin and underlying tissues. It contains a mixture of lidocaine and prilocaine, which work together to provide effective analgesia. EMLA cream is commonly used to reduce discomfort associated with minor procedures, such as needle insertions and skin biopsies.
**Why the Correct Answer is Right**
EMLA cream is effective in numbing the skin and superficial tissues, making it suitable for procedures like skin biopsies, venipunctures, and minor surgical procedures. The mechanism of action involves the diffusion of lidocaine and prilocaine into the skin, where they are metabolized to their active forms, which then block sodium channels and inhibit nerve conduction.
**Why Each Wrong Option is Incorrect**
**Option A:**
* This option may be incorrect if it involves procedures that require deeper or more extensive anesthesia, such as orthopedic procedures or surgeries that require muscle relaxation.
**Option B:**
* This option may be incorrect if it involves procedures that require more rapid onset of anesthesia, such as emergency procedures or surgeries that require immediate anesthesia.
**Option C:**
* This option may be incorrect if it involves procedures that require more prolonged anesthesia, such as surgeries that require several hours of anesthesia.
**Clinical Pearl / High-Yield Fact**
EMLA cream is typically applied to the skin 1-2 hours before the procedure to allow sufficient time for the anesthetics to take effect. It is also essential to occlude the area with a dressing or plastic wrap to enhance absorption.
**Correct Answer: A.**