I would be very careful. Question include how old are you, how much were you making, are you back at work, any restrictions, future medical care? There are potential social security and Medicare issues here as we'll not to mention social security disability. Call a couple of good workers comp lawyers in your area. You get one chance with this.
This is from my blog on this topic, which is linked below.
This one is a little tricky. First, if an EMPLOYER (not insurance company) has a prior policy of requiring drug testing after an on the job injury, then the employee must either take the test or risk losing his job for violation of company policy. If there is no such policy then the employee is on firmer ground refusing the test. However a refusal or even a positive test is not a valid basis for denying a workers’ compensation...
If you are talking about Social Security Disability then I agree with Seth. If you are talking about Social Security Retirement then you can get both with no offset. Also, if you are drawing Social Security Disability and are thinking about getting a lawyer then SSD will make up to you what you have to pay that lawyer. Almost like a free attorney.
As noted below you should probably file a workers' comp claim by filing a Form 18 with your employer and the NC Industrial Commission. Tenosynovitis ("trigger finger") caused by trauma in employment is compensable as an occupational disease in NC. You would have to show that your employment substantially contributed to the condition.