15 mL of 1% lidocaine contains how many milligrams of lidocaine?

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Multiple Choice

15 mL of 1% lidocaine contains how many milligrams of lidocaine?

Understanding percent concentration and how it translates to mg per mL is the key here. A 1% solution means 1 gram in 100 milliliters, which is 1000 mg per 100 mL. That works out to 10 mg per milliliter. With 15 mL of this solution, you multiply: 15 mL × 10 mg/mL = 150 mg of lidocaine. So the total amount present is 150 mg.

Understanding percent concentration and how it translates to mg per mL is the key here. A 1% solution means 1 gram in 100 milliliters, which is 1000 mg per 100 mL. That works out to 10 mg per milliliter. With 15 mL of this solution, you multiply: 15 mL × 10 mg/mL = 150 mg of lidocaine. So the total amount present is 150 mg.

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