GPSY - Overview: Glucopsychosine, Blood Spot

Test Catalog

Test Name

Test ID: GPSY    
Glucopsychosine, Blood Spot

Useful For Suggests clinical disorders or settings where the test may be helpful

Quantification of glucopsychosine (glucosylsphingosine) in dried blood spots supports the biochemical diagnosis of Gaucher disease


May aid in monitoring a patient’s response to treatment

Genetics Test Information Provides information that may help with selection of the correct test or proper submission of the test request


Gaucher disease is an autosomal recessive lysosomal storage disorder caused by deficient beta-glucosidase activity.


There are 3 described types of Gaucher disease with varying clinical presentations and age of onset from a perinatal lethal disorder to an asymptomatic type.


Glucopsychosine is elevated in symptomatic patients and supports a diagnosis of Gaucher disease.

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

See Newborn Screen Follow-up for Gaucher Disease in Special Instructions.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Glucopsychosine, BS

Aliases Lists additional common names for a test, as an aid in searching

Gaucher disease