English Spanish interpreter required for medical consultation

Hi, my wife & I have to visit the neurologist at the Hospiten in Vecindario Gran Canaria on February 7th at 13:30. My wife has a reasonable Spanish vocabulary, whereas I’m somewhat less competent. Given that the neurologist only speaks Spanish I wondered whether someone local would be able to translate to English for us during the consultation. We are both Spanish residents and live in Tías Lanzarote. Could anyone interested be kind enough to let me know if you would be available for this service (or can recommend someone who can) and at what cost.

Thanks for any help/information.

Regards, 
Peter & Debbie