Special Chemistry

Test Name Ordered	Sample Type Received	Incorrect Test Requested	Default Action	Reason for Default Action	Attached Abbreviation to Be Used*
*Abbreviation key:
CHGCOL: “Please note that the test number was changed to reflect the collection time submitted.”
CHGHCL: “Please note that the test number was changed to reflect the preserved or unpreserved sample submitted.”
CHGSRC: “Please note that the test number was changed to reflect the specimen source submitted.”
Fecal Fat	72-hour collection	001677 (qualitative)	Change to 001354 − Fecal Fat, Quantitative	Change to test number for 72-hour collection.	CHGCOL
Fecal Fat	Random	001354 (quantitative)	Change to 001677 − Fecal Fat, Qualitative	Change to test number for random collection.	CHGCOL
Porphyrins	Random urine	003194 (24-hour urine)	Change to 120980 − Porphyrins, Quantitative, Random Urine	Change to test number for random collection.	CHGCOL
Porphyrins	24-hour urine	120980 (random urine)	Change to 003194 − Porphyrins, Quantitative, 24-hour Urine	Change to test number for 24-hour collection.	CHGCOL
Serotonin	EDTA whole blood	120204 (serum)	Change to 120089 − Serotonin, Whole Blood	Change to match the specimen type received.	CHGSRC
Serotonin	Serum	120089 (whole blood)	Change to 120204 − Serotonin	Change to match the specimen type received.	CHGSRC

Frozen Gel Packs. To ensure specimen integrity during warm weather, follow these Instructions for Use of frozen gel packs and specimen lockboxes (https://www.labcorp.com/.EdosPortlet/TestMenuLibrary?libName=File+Librar...).

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