Question 35 of 46

Yes. The concentration of vasoconstrictor in a 1:100,000 solution of lidocaine is 0.01 mg/ml.

To determine this, multiply 1/100,000 by 1000. That equals 1/100 which is equivalent to 0.01

Using the same formula, a 1:200,000 concentration is equal to 0.005 mg/ml (1/200,000 multiplied by 1000 equals 1/200 which is equivalent to 0.005).

A 1:50,000 concentration is equal to 0.02 mg/ml and a 1:20,000 concentration is equal to 0.05 mg/ml.