Yes, there are guaranteed approved life insurance policies available for people age 45 to 85.
Also, you may want to contest the lab results if they were the cause of you being turned down and request another test of your blood or urine if you feel the results were wrong.
Another option may be fully underwritten life insurance through a life insurance carrier that specializes in insuring the lives of high risk people.
Learn more about how to get life insurance after being turned down.