Mountain rescuers were called out to Castle Crag above Rosthwaite in Borrowdale yesterday.
A spokesman for Keswick Mountain Rescue Team said three women were walking towards Castle Crag above Rosthwaite when one slipped and twisted her knee.
She was unable to continue due to the pain. A passing walker, who happened to be a nurse, provided some pain relief and and strapped on a knee support.
A call for assistance was made and Keswick Mountain Rescue Team deployed a team.
On arrival, an assessment of the injury was made and further pain relief provided before the woman was stretchered to Rosthwaite and a waiting ambulance.
The incident took 12 team members a total of two hours and 17 minutes.
