A patient receives three 1.7 mL cartridges of 3% mepivacaine. How many milligrams of anesthetic does she receive?

Prepare for the Dental Hygiene Local Anesthesia Exam. Enhance your skills with multiple-choice quizzes, helpful tips, and clear explanations. Ace your test with confidence!

Multiple Choice

A patient receives three 1.7 mL cartridges of 3% mepivacaine. How many milligrams of anesthetic does she receive?

Explanation:
A 3% solution means 30 mg of anesthetic per milliliter. Each cartridge is 1.7 mL, so one cartridge contains 1.7 × 30 = 51 mg. Three cartridges provide 3 × 51 = 153 mg total. This amount sits well below the typical maximum dose for plain mepivacaine (around 400 mg), so it’s within a safe range.

A 3% solution means 30 mg of anesthetic per milliliter. Each cartridge is 1.7 mL, so one cartridge contains 1.7 × 30 = 51 mg. Three cartridges provide 3 × 51 = 153 mg total. This amount sits well below the typical maximum dose for plain mepivacaine (around 400 mg), so it’s within a safe range.

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