If a patient's MRD is 240 mg and 108 mg of 3% mepivacaine has already been administered,how much more mepivacaine can the patient receive?
A) 0 mg of 3% mepivacaine;a different local anesthetic should be selected
B) 30 mg of 3% mepivacaine
C) 348 mg of 3% mepivacaine
D) 132 mg of 3% mepivacaine

Question

Quizplus · Accepted Answer

The maximum safe dose of mepivacaine is 4.5 mg/kg. Assuming an average body weight of 70 kg, the maximum safe dose of mepivacaine for this patient would be 315 mg. Since 108 mg has already been administered, the patient can receive an additional 207 mg of mepivacaine. Therefore, the answer is D, which is 132 mg of 3% mepivacaine.

If a Patient's MRD Is 240 Mg and 108 Mg