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Laboratory Test Directory

Lysosomal Krabbe Screen


Name Method Department Units
Lysosomal Krabbe Screen Enzymatic assay
Send Out

Battery Members

GM1 gangliosidoses (MPS IVB), Krabbe disease

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume

Purple tube (EDTA)

4 mL 4 mL

Green tube (Sodium heparin), No Gel

6 mL 4 mL

Green tube (Lithium heparin), No Gel

6 mL 4 mL

Green tube (Lithium heparin), No Gel

Micro sample tube 4 mL

Room temperature - 24 hour(s)

Specimen Preparation

  • Mix heparin tube by gentle inversion immediately after collection
  • Keep at room temperature
  • Transport to laboratory as soon as possible

Reasons for Rejection

  • Collected in tube with gel separator
  • Wrong collection tube
  • Refrigerated specimen
  • Centrifuged specimen
  • Not received within specified time frame
  • Specimen received on wrong day of week.


Collect sample Monday-Friday ONLY. It is best to have the sample in the Sendout lab no later than 5 pm on the day of the draw. The testing lab requests the samples be received at their facility within 24 hours of collection. Samples collected on Friday will be sent by FedEx for Saturday delivery. It is not necessary to call the testing lab before sending for a Saturday delivery. 

Sample volume less than 2 mL will not be accepted. Testing will not be performed if Clinical History Form is not submitted(see "Links" below). 

CPT Code

  • 82658