Dental local anesthetics containing vasoconstrictors should not be used in patients with cardiovascular disease.The vasoconstrictor will elevate the blood pressure too much.

Question

Quizplus · Accepted Answer

A patient can produce endogenous epinephrine far in excess of that administered in dentistry in the presence of inadequate anesthesia.This sometimes occurs when vasoconstrictors are avoided.Medical consults often recommend that epinephrine be avoided because physicians are more familiar with the dose used in medicine.This was thought to be true in the 1940s,however,cardiac patients have shown they can safely tolerate the cardiac dose of epinephrine,which is 0.04 mg.

Dental Local Anesthetics Containing Vasoconstrictors Should Not Be Used in Patients