A better question is would you drive a car without a working gas gauge? Blood tests are flagged as abnormal if they exceed the 95% confidence interval. So ther

A better question is would you drive a car without a working gas gauge? Blood tests are flagged as abnormal if they exceed the 95% confidence interval. So there is a possibility of it happening by chance. Or you may get some abnormality due to minor issues like a recent cold or injury. But then you just need to start a conversation with your doctor to get clarity. Did you know your kidney health could be down to 10-20% of capacity and you would not even feel a thing wrong? And something happened to me in 2 intervening years of tests for that exact scenario to happen. I doubt most people have tested anything other than their cholesterol and BP in the last two years. If anything, we should be checking our body health more than our car because we can always replace our car.