"Yen!" Geralt shouted as Yennefer lost consciousness. He cupped the back of her head and eased her onto the ground. He leaned over to listen for her breath. Satisfied that she'd only passed out and had not expired on him he then looked for the source of all the blood. A stab wound. He put a hand on top of it and put pressure against it, trying to stifle the bleeding. "Yennefer? Come back to me."
Knowing that she needed more help than he could provide he shouted to anyone that could hear him: "A medic! I need a medic here!"