I applied for care credit about 2 years ago and got approved. But I did get a cosigner, so not sure if I would have been approved without one. The one thing you need to remember is to pay off the balance before promotional period ends, or they will charge you the whole deferred interest. And also make sure you don't miss a payment or they will charge you interest for that too.
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My Application Sent: 8/20/12 - Lockbox: Phoenix - Mailing Method: Priority Mail - Delivered: 8/22/12
G-1145 Notification: 8/27/2012 I-797C Date: 8/29/2012 Biometrics Date: 9/17/2012 Date EAD Approved: 3/13/2013