As to how long it will take to get the blood results it depends on what lab is doing the blood work. If your wet reckless was over 10 years ago and you have not had any DUI convictions in the interim this should be treated as a first time offense.
Make sure to set your APS hearing with DMV.
Blood tests can take a long time to come back from the lab. Your wet reckless is over 10 years old and should have no impact on your current incident. Get an attorney . Contact the DMV and request an APS hearing within 10days of your arrest.
First of all, it depends on the county you were arrested in... I'm a local Santa Cruz Attorney, and lately, the Santa Cruz District Attorney's office has been rather slow. This being said, I have some "blood" cases that are almost a year old. Call me if you would like some actual local advise on how we deal with blood cases in Santa Cruz County.