LOINC display name : Acylcarnitine NBS panel (DBS);
LOINC long common name : Acylcarnitine newborn screen panel;
LOINC short name : Acylcarnitine NBS pnl DBS;
LOINC description : Newborn screening dried blood spot analysis by tandem mass spectrometry (MS/MS) requires
pre-processing the specimen with one of two alternative reagent methods referred to
as derivatized and non-derivatized (or underivatized) methods. The methods are similar
and nearly all analytes and ratios are identical with the limited number of exceptions
noted in the description of the LOINC codes. Some labs choose to use the non-derivatized
method because it may be faster or less expensive for their operations. There are
no analytes which would be interpreted differently based on the method used to process
the specimen so there is no need for different LOINC codes for the same compounds
based on the reagents. In a few cases, a different LOINC code is used for the derivatized
or non-derivatized tandem mass spectrometry (MS/MS) method because based on the reagents
used in processing, different analytes are measured or different sets of analytes
become isobaric, which means that they cannot be distinguished on the MS/MS because
they have the same molecular weight after reagent processing.;