I have an achilles tendon ruptute, but will undergo surgery only a week later. what should i do to minimise the consequences/complications (if any)?

Achilles tendon : Sorry to hear about your achilles tendon tear. Stop smoking if you smoke, don't drink alcohol (it's a toxic), hydrate and use ice around the area because it's probably swollen and bruised. Eat healthy and keep away from spicy foods that may raise your blood pressure. Also, shave the area and use aftershave (alcohol based) to clean afterwards if there are hairs in the back of the leg.

See below: Follow the instruction given by your surgeon for rest elevation and non-weight bearing.