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Test Code B0010
Test Summary

This test detects glucosylceramidase activity.

Turn-Around-Time (TAT)* 3  days
Acceptable Sample Types
Dried Blood Spots
Whole Blood (EDTA)
Acceptable Billing Types
Self (patient) Payment
Institutional Billing
*TAT starts after the sample and all required sample information is received at PerkinElmer Genomics, or after the benefits investigation is complete if requested for commercial insurance billing.

This test detects glucocerebrosidase (glucosylceramidase) enzyme activity that has been associated with Gaucher disease.

This test may be appropriate for individuals with a clinical suspicion of Gaucher disease and/or individuals with a family history of Gaucher disease.

Gaucher disease is associated with accumulation of harmful lipids throughout the body. There are 5 types of Gaucher disease. Type 1 Gaucher disease is the most common form, with a variable age of onset and symptom severity. Symptoms typically include hepatosplenomegaly, anemia, easy bruising, lung disease, and bone abnormalities. Type 2 and Type 3 Gaucher disease both affect the central nervous system and symptoms typically include the symptoms of Type 1 Gaucher disease plus abnormal eye movements, seizures, and brain damage. Type 2 Gaucher disease typically onsets in infancy and rapidly progresses, while Type 3 Gaucher disease typically progresses slower. The perinatal lethal form of Gaucher disease has symptom onset during pregnancy or in early infancy. Symptoms include hydrops fetalis, ichthyosis, skin abnormalities, hepatosplenomegaly, distinct facial features, and severe neurological problems. Death usually occurs a few days after birth. The cardiovascular form of Gaucher disease typically show symptoms of calcified heart valves, eye abnormalities, bone disease, and splenomegaly. The incidence of Gaucher disease is estimated to be ~ 1 in 50,000.

Dried Blood Spots
Collection Container(s):

Dried blood spot card

Collection:

Follow kit instructions. Briefly, allow blood to saturate card until indicated areas are filled and blood has soaked through card. Air dry card at ambient temperature for at least 3 hours.

  • NBS: Please contact PKIG to request the StepOne® kit.
  • Gene Sequencing: Please contact PKIG to request the DBS collection kit.
  • For pre-punched DBS: The required minimum 6 punches with 3.2 mm or 4 punches 4.75 mm.
Condition: Follow the instructions provided with the collection set. Store the dried blood at ambient temperature for up to two days. If the specimen cannot be sent as soon as it is dry, the filter paper should be placed in a sealable plastic bag and stored in a refrigerator (≤ 8°C) or preferably in a freezer.
Shipping: Follow kit instructions. Double bag and ship overnight at ambient temperature.
Whole Blood (EDTA)
Collection Container(s):

EDTA (purple top)

Collection:

Infants (< 2-years): 2 to 3 mL; Children (>2-years): 3 to 5 mL; Older children and adults: Minimum 5mL. The blood tube should be inverted several times immediately after blood collection to prevent coagulation.

Condition: Store at ambient temperature. Do not refrigerate or freeze.
Shipping: Ship overnight at ambient temperature ensuring receipt within 5-days of collection.
SPECIAL INSTRUCTIONS
Clotted or hemolyzed samples are not accepted.

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