Why would I choose blood spot testing over saliva testing or blood serum testing?
Blood spot testing provides results that correlate extremely well to serum testing results in terms of accuracy, but without the cost and inconvenience of conventional blood drawing. There’s no driving across town to a blood lab during morning rush hour to have your blood drawn, because you collect your own sample at home or in your doctor’s office at a time that is more convenient. Blood spot testing is particularly convenient after fasting all night in preparation for our cardiometabolic testing and when testing morning Cortiso, l because both tests must be done upon waking. Blood spot testing is also a better method for those supplementing with hormones in the form of troches or sublingual drops or lozenges that are taken by mouth. This is because use of these oral supplements can cause false high saliva testing results due to high concentrations of hormone in the oral mucosa for several days following your last dosage. Blood spot testing allows people who use these oral supplements
