Is this a scratch or a venomous snakebite?

There are no puncture marks to be seen after a patient's close encounter with a snake

Tom is a 55-year-old farmer, brought to your rural ED by his friend, Shane, following a suspected snakebite.

Pressure bandage

They explain that as Tom was helping clear rubbish from around Shane’s garden shed, he noticed a snake.

When Tom attempted to kill the reptile using a shovel, it struck at him.

Tom saw there was a scratch mark on his leg, and within minutes, began to feel dizzy and nauseated. Shane helped Tom to his ute and drove for 20 minutes to the ED.

Tom is normally fit and healthy. He