How Much Blood is Actually Tested?

One of the common misconceptions about DUI blood testing is that people think that an entire 10 ml vial of blood is tested.  It is not.  The actual amount tested can be seen in the picture below. (Note: There is a difference in the two vials.  Can you tell what it is?)


The vial on the right has 20% more blood in it than the vial on the left.

When testing amounts of blood this small, accuracy (bias), precision (calibration) and proper  handling are of critical importance.  Even the smallest deviation or contamination can result in an erroneous result and an erroneous result can result in an innocent person landing in jail and losing their license.

When we are testing things that are this small, there is no room for error.

That’s why you need a law firm that believes that there must be no error in its practice of law.

Knowing the science behind the testing is a big part of being a successful DUI attorney and is a big part of what we do at The McShane Firm.  Call 1-866-MCSHANE if you have any questions on DUI blood testing.

Justin McShane

PA DUI attorney Justin J. McShane is the President/CEO of The McShane Firm, LLC - Pennsylvania's top criminal law and DUI law firm. He is the highest rated DUI attorney in PA as rated by Justin McShane is a double Board certified attorney. He is the first and so far the only Pennsylvania attorney to achieve American Bar Association recognized board certification in DUI defense from the National College for DUI Defense, Inc. He is also a Board Certified Criminal Trial Advocate by the National Board of Trial Advocacy, a Pennsylvania Supreme Court Approved Agency.

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