If you refuse to take either a breath or blood test, it’s treated as if you had a positive breath or blood test. The officer will take your driver’s license, he’ll give you what’s called an Officer’s Affidavit that indicates that you’ve refused to take the test, and that will be reported to the Department of Public Safety, who is the administration that issues driver’s licenses. What they do is within 30 days, unless you request a hearing from them, your license will be suspended for at least 6 months. In Oklahoma, it’s typically better to take the breath test, and then if you would like to request a blood test at your own expense, you can. Refusing will be treated as if you were over the legal limit even if you weren’t.
The other thing that people don’t realize, is that a prosecutor can use a refusal against you. A lot of people assume that it goes under your right to remain silent, but the way Oklahoma law is, a prosecutor can argue to a judge or argue to a jury that you’ve refused because you knew you were intoxicated, and that’s why you didn’t take the test. It can be used against you in several ways. Under Oklahoma law, it’s usually your better bet to go ahead and take the breath test and request the blood test at your own expense.