The scene is set in an English forest, mid autumn, 1919. A woman has been shot - fatally - and I need her to be conscious and take a long time to die. The only other person present is a doctor who cannot save her because of the nature of her wound and lack of equipment &/or assistance, taking into account that he has all the knowledge of an ex-WW1 medic.
BUT, later, when the doctor has access to a time machine he goes back and saves her... so she needs to be salvageable.
What kind of injury would be appropriate? The woman needs to be capable of coherent speech - even if she is in terrible pain - and the wound is inflicted by a single bullet from a revolver.