<prompt> Blood spot Tandem mass spectrometry can be used in the diagnosis of all the following disorders EXCEPT?Lesch Nyhan diseaseFatty acid oxidation defectsMitochondrial disordersPropionic Acidemia  <response>: Tandem mass spectrometry used in the diagnosis of: Fatty acid oxidation defects Mitochondrial defects Organic acidemias Aminoacidopathies Urea cycle disorders. 