A tool designed to compute the upper safety threshold for local anesthetic administration when combined with a vasoconstrictor. It considers patient-specific factors like weight, age (in some cases), and medical conditions to provide a dose limit recommendation for lidocaine containing epinephrine. As an example, a healthy adult weighing 70 kg will have a significantly higher allowable quantity compared to a frail elderly patient weighing 50 kg.
The correct calculation of these limits is critical in clinical practice to prevent systemic toxicity. Overdosing can lead to adverse effects ranging from central nervous system excitation (e.g., seizures) to severe cardiovascular complications (e.g., arrhythmias, cardiac arrest). Historical incidents involving anesthetic overdoses have underscored the need for readily available and accurate computational aids. It is an adjunct and should not replace clinical judgment.
