Well, yes - she's going private.
I'm not sure it's well understood, but Britain has a private health care system alongside the NHS and anybody is perfectly free to use it if they choose to - as long as they pay for it, either directly, or through having appropriate health insurance. Only about 8% of people use it, but they're not forced into only using the NHS - people choose it.
With ObamaCare being implemented here, where will Canadians (and Americans) go for good medical care?