Final answer:
To block the lateral cutaneous nerve of the forearm (C5-7), wrist block and axillary block are commonly used techniques.
Step-by-step explanation:
To block the lateral cutaneous nerve of the forearm (C5-7), several techniques can be used.
One common technique is the wrist block, also known as the modified Ludloff technique. This involves injecting local anesthesia into the wrist, targeting the dorsal surface of the wrist where the nerve is located. This block can be useful for surgeries or procedures involving the lateral aspect of the forearm.
Another technique is the axillary block, where local anesthesia is injected into the axilla (armpit) to block the nerves supplying the entire arm, including the lateral cutaneous nerve of the forearm.