If a law enforcement officer suspects that you are under the influence of alcohol or drugs, the officer can require that you take a blood or urine test. what may happen if you refuse?

The answer is: Persons refusing these tests will be subject to license suspensions and revocations
The punishment for the refusal to take blood or urine tests is varied depending on the number of violation and the states where the violation happened.
On average, first time offender would be punished with one-year license suspension and $500 fine.