Using Young's rule, calculate the mg of 2% lidocaine a 10-year old, 60-pound child can receive before reaching the MRD?
A) 125 mg
B) 136 mg
C) 200 mg
D) 227 mg

Question

Quizplus · Accepted Answer

Young's rule: MRD (mg/kg) = Age (years) x 4 mg/kgMRD for a 10-year old child = 10 x 4 = 40 mg/kgMRD for a 60-pound child = 40 mg/kg x 60 pounds = 2400 mg2% lidocaine contains 20 mg/mLTherefore, the child can receive 2400 mg / 20 mg/mL = 120 mL of 2% lidocaine before reaching the MRD.

Using Young's Rule, Calculate the Mg of 2% Lidocaine a 10-Year