JSAL Anesthesia Practice Test

What is the primary reason to use Bupivacaine for pre-scrotal SQ, IP, or QLB blocks?

Faster onset of anesthesia Cheaper and more widely available Lower systemic toxicity Longer duration of analgesia at the incision site

Correct Answer:

Longer duration of analgesia at the incision site

Explanation:

The main idea here is that the advantage of bupivacaine in these blocks is the long-lasting pain relief it provides after surgery. Bupivacaine is a long-acting local anesthetic, with high tissue affinity, so it stays in the injection area longer and releases its effect over many hours. In pre-scrotal subcutaneous, intraperitoneal, or quadratus lumborum blocks, this extended duration translates to prolonged sensory anesthesia at the incision site, meaning better postoperative analgesia and less need for additional opioids in the early recovery period. It’s worth noting that onset is slower than some shorter-acting agents, and toxicity risk and cost vary, but the standout benefit for these incisional blocks is the longer duration of analgesia.

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