The stress test in itself cannot be checked by a blood test. There can be a series of tests recommended by your doctor that can reveal the side effects of continuing stress. For example, a blood glucose test can reveal if you are inching towards type II diabetes. A blood profile test can also give you a lipid profile or a thyroid profile. The level of cortisol can also indicate stress. So, there are different stress tests representing various ailments being caused due to stress.