I had surgery and anesthesia for a nerve block was injected into my femoral artery causing a seizure. the question? can i donate blood after this?

Yes: The drug will disappear from your bloodstream over a few hours.

Should be fine: Local anesthetics are relatively quickly metabolized after administration. Unless you plan on giving blood at the same time that you might have local anesthetic inadvertently injected into a vessel, it should be fine to donate, provided you meet all pre-donation criteria.

Yes: I am sorry this happened to you. The medication that caused the seizure is gone from your system and will nit impact the ability to give blood.