The carrots can definately turn skin yellow/orange if you eat enough of them. No doubt the doctor just wants to make sure it isn't anything else. May just be a simple as reducing amount of carrot/juice she consumes. Tell her not to worry and to go and get those tests done, if only to put her mind at rest. My friend turned a lovely orangey hue when she went on some faddy juice diet and was getting through bags of carrots a day. Looked like she had had a really bad fake tan job done on her, soon disappeared when she went back to a normal diet.
Crohn's, antiphospholipid syndrome, Crohn's arthritis, very low blood pressure, low kidney function, ezcema, asthma, ileostomy, short bowel syndrome, many surgeries for abscessses & strictures. Lupus - caused by Humira, nerve damage, 6 displaced discs in neck and 1 in lower back. Hyperparathyroid disease. Azathioprine, immodium, fludrocortisone, oxycodone, gabapentin, amitriptyline, vit d