When you are dehydrated, even a little, it is much harder to get a blood draw. Next time you need to have
blood drawn, be sure and drink plenty of water - even if you are to have the blood drawn fasting, you can still drink water - it will not affect the outcome of the test results. I'm always a "hard stick", and it is especially true if I am even a little dehydrated, so I always make sure to drink extra water before I go for any blood testing.