Nathaniel didn't have enough to even panic, he was literally just told to hand the man equipment throughout the procedure. Luckily for him Nathaniel had seen enough of the internal workings of creatures in his time in the tundra. Nature played no favorites and he had definitely seen much more than his fair share of blood and gore. He was handing, cleaning and holding so many parts of the body, tools and gloves that he was definitely under qualified for. While the boy focused in and refused let anything distract him, he noticed a sharp wince as he turned his back, Gerard had cut himself.
Backing up, holding his wound, Nathaniel looked between the two and moved in to help him out. He finished cutting the connecting tissue, veins and arteries and removed the heart as the doctor had started. He turned his attention to the donated heart, lifting it gently into place and slowly beginning to stitch the pieces together. He continued to slowly close the open chest, inserting stitches slowly and steadily into the flesh as Gerard sort of watched bewildered by the boy's actions. When he finished he sighed, dropping the tools on the cart and placing his hands on the table before looking to Gerard for approval who simply sat their shocked.
WC: 218 + 313 = 531