European journal of emergency medicine : official journal of the European Society for Emergency Medicine
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Randomized Controlled Trial Clinical Trial
Anaesthesia for arterial puncture in the emergency department: a randomized trial of subcutaneous lidocaine, ethyl chloride or nothing.
To determine whether the use of ethyl chloride and subcutaneous lidocaine are associated with a reduction in pain during arterial blood sampling compared with using no local anaesthesia. ⋯ Ethyl chloride is not an effective local anaesthetic agent for AP. When the pain of local anaesthetic administration is taken into account the benefit of subcutaneous lidocaine for single AP is limited.