A 75-year-old patient with a history of chronic kidney disease requires a femoral nerve block for a femoral fracture. Which local anaesthetic is preferred for postoperative analgesia due to its lower cardiac toxicity and reduced renal clearance dependence?
- A Bupivacaine
- B Ropivacaine ✓
- C Lidocaine
- D Procaine
Correct answer: B. Ropivacaine
Explanation
Ropivacaine is a pure S-enantiomer amide local anaesthetic with a lower cardiac toxicity profile compared to bupivacaine. While lidocaine and procaine are options, ropivacaine provides prolonged sensory blockade with less motor blockade, making it ideal for postoperative analgesia in elderly patients with comorbidities.
Reference: Miller's Anesthesia, 9th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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