But last month, as the nebulizer hummed loudly in her La Jolla, California, hotel room, she breathed in medicine through her mask and hoped this day would be the first step toward something different.
She'd traveled from Los Angeles with her mother, her best friend and her pit bull, Daisy, who flopped down on the floor atop one of Claire's ever-present oxygen tubes. A full day of appointments at a nearby medical center awaited her, when she would begin the evaluation process to see whether she might be a candidate for a double-lung transplant.
A year earlier, Claire vowed that she'd never have the major surgery.
"It's not for me and never has been," she said at the time.
She was more comfortable dealing with the illness she knew than taking on the unknown. She preferred to focus on leading a purposeful life than worrying about death and how to dodge it.