A bushwalker was bitten twice by a snake on her an ankle in a popular NT national park yesterday.
Other bushwalkers performed first aid and made a stretcher from tree branches to carry her to a clearing in Litchfield.
The CareFlight rescue helicopter with a flight doctor and a flight nurse was sent to winch her up and take her to Royal Darwin Hospital.
The drama unfolded at 10.30am yesterday.
A woman in her 30s was bushwalking with a group in the park when the incident occurred.
It is not known what sort of snake bit the bushwalker.
Members of the party performed first aid on the woman and fashioned the stretcher to transport her.
One of the party was sent sent ahead to raise the alarm and encountered a 4WD who notified 000 at the park's information centre, providing approximate geocoordinates of the party's location.
CareFlight responded to the 000 call by tasking the Top End Rescue Helicopter with a flight doctor and flight nurse on board.
From the air and using the geocoordinates provided by the bushwalking party, CareFlight's helicopter crew was able to locate the patient and her group and direct Litchfield National Park Rangers to them.
As there was nowhere to land, CareFlight's flight doctor and flight nurse winched down to the group and assessed the woman's condition.
The patient was then winched into the helicopter where the crew continued observation of the woman as she was flown to Royal Darwin Hospital for further treatment.