What is the suggested deposit rate of local anesthetics?

What is the suggested deposit rate of local anesthetics?

• A. 0.5 ml/min
• B. 1 ml/min
• C. 2 ml/min
• D. 3 ml/min

Answer: (B)

Depositing local anesthetic at about 1 mL per minute is the recommended rate because it lets the tissue accommodate the solution without a sudden spike in pressure, which can distort tissues, cause pain, or risk nerve injury. A slow, steady flow also gives you time to monitor the patient for signs of intravascular injection or adverse reactions and to adjust as needed. If you inject too quickly, tissue pressure rises and diffusion can become less controlled, increasing discomfort and potential complications. If you go too slowly, the procedure takes longer and the patient remains uncomfortable, though safety remains higher. Therefore, about 1 mL per minute is considered the optimal deposit rate.

Depositing local anesthetic at about 1 mL per minute is the recommended rate because it lets the tissue accommodate the solution without a sudden spike in pressure, which can distort tissues, cause pain, or risk nerve injury. A slow, steady flow also gives you time to monitor the patient for signs of intravascular injection or adverse reactions and to adjust as needed. If you inject too quickly, tissue pressure rises and diffusion can become less controlled, increasing discomfort and potential complications. If you go too slowly, the procedure takes longer and the patient remains uncomfortable, though safety remains higher. Therefore, about 1 mL per minute is considered the optimal deposit rate.