LOINC display name : Meperidine (Unknown substance) [Mass/Vol];
LOINC long common name : Meperidine [Mass/volume] in Unknown substance;
LOINC short name : Meperidine Usub-mCnc;
LOINC description : Analysis of an unknown substance. Test is ordered on unknown powders, liquids, capsules,
tablets, syringe contents, residue from drug paraphernalia, etc., for identification
and quantification of the unknown substance.;