Cristina rolled her eyes as Colleen went on the defensive, when the younger girl started demanding that Cristina test her she simply crossed her arms and gave her a look but otherwise didn't move.
"Have you quite finished?" she asked without waiting for a reply, "Sit down and listen. There is nothing wrong with your heart, I know this because they happen to be my specialty and even if they weren't it would be clear that you're suffering from panic attacks even to a bloody scrub nurse"
She held her hand out and ticked off symptoms on her fingers, "Palpitations, trembling, sweating, shortness of breath, chest pain and a feeling of nausea - all of which dissipate when you calm down and breathe. No serious heart condition I know of can be controlled by simply breathing it away. Now we can try and work out a way to help you or you can continue to be a whiny ridiculous child"
It would have sounded harsh to anybody else but for Cristina this was actually her being quite patient and nice.