Poor Dex! Teddy can relate. He doesn't like to be away from his humans.
I never thought of blood pressure from stress affecting the draw. Teddy had his blood drawn in front of me once. When the techs left the room, I saw blood dripping out of his arm and down my leg.
I had to call them back into the room. They thought I would be worried about his hair being blood soaked. No! I wonder if it was because he was nervous.