<prompt> Which of the following estimates blood creatinine level most accuratelyJaffe methodKinetic jaffe methodTechnicon methodEnzyme assay  <response>: D i.e. Enzyme assay Gas chromatography - isotope dilution mass spectrometry GC- IDMS is considered the method of choice for establishing the true concentration of creatinine in serum because of its excellent specificity HPLC Enzyme assay Alkaline picrate methodsQ. 